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20 Amazing Optical Illusions

Jamie Frater . . . Comments

An optical illusion is always characterized by visually perceived images that, at least in common sense terms, are deceptive or misleading. Therefore, the information gathered by the eye is processed by the brain to give, on the face of it, a percept that does not tally with a physical measurement of the stimulus source. This is a list of twenty amazing illusions.

1. Blivet

Pic Blivet

A blivet, also known as a poiuyt, is an undecipherable figure, an optical illusion and an impossible object. It appears to have three cylindrical prongs at one end which then mysteriously transform into two rectangular prongs at the other end.


2. Bezold Effect

Bezold Effect

The Bezold Effect is an optical illusion, named after a German professor of meteorology, Wilhelm von Bezold (1837-1907), who discovered that a color may appear different depending on its relation to adjacent colors. In the above example, the red seems lighter combined with the white, and darker combined with the black.

3. Café Wall Illusion

800Px-Café Wall.Svg

The café wall illusion is an optical illusion, first described by Doctor Richard Gregory. He observed this curious effect in the tiles of the wall of a café at the bottom of St Michael’s Hill, Bristol. This optical illusion makes the parallel straight horizontal lines appear to be bent. To construct the illusion, alternating light and dark “bricks” are laid in staggered rows. It is essential for the illusion that each “brick” is surrounded by a layer of “mortar” (the grey in the image). This should ideally be of a color in between the dark and light color of the “bricks”.


4. The Chubb Illusion

Chubbillusion

The Chubb illusion is an optical illusion wherein the apparent contrast of an object varies dramatically, depending on the context of the presentation. Low-contrast texture surrounded by a uniform field appears to have higher contrast than when it is surrounded by high-contrast texture. This was observed and documented by Chubb and colleagues in 1989.

5. Ebbinghaus Illusion

650Px-Mond-Vergleich.Svg

The Ebbinghaus illusion is an optical illusion of relative size perception. In the best-known version of the illusion, two circles of identical size are placed near to each other and one is surrounded by large circles while the other is surrounded by small circles; the first central circle then appears smaller than the second central circle.


6. Fraser Spiral Illusion

597Px-Fraser Spiral.Svg

The illusion is also known as the false spiral, or by its original name, the twisted cord illusion. The overlapping black arc segments appear to form a spiral; however, the arcs are a series of concentric circles.

7. Hermann Grid Illusion

232Px-Hermann Grid Illusion.Svg

The Hermann grid illusion is an optical illusion reported by Ludimar Hermann in 1870 while, incidentally, reading John Tyndall’s Sound. The illusion is characterised by “ghostlike” grey blobs perceived at the intersections of a white (or light-colored) grid on a black background. The grey blobs disappear when looking directly at an intersection.


8. Hering Illusion

320Px-Hering Illusion.Svg

The Hering illusion is an optical illusion discovered by the German physiologist Ewald Hering in 1861. The two vertical lines are both straight, but they look as if they were bowed outwards. The distortion is produced by the lined pattern on the background, that simulates a perspective design, and creates a false impression of depth.

9. Impossible Cube Illusion

582Px-Impossible Cube Illusion Angle.Svg

The impossible cube or irrational cube is an impossible object that draws upon the ambiguity present in a Necker cube illustration. An impossible cube is usually rendered as a Necker cube in which the edges are apparently solid beams. This apparent solidity gives the impossible cube greater visual ambiguity than the Necker cube, which is less likely to be perceived as an impossible object. The illusion plays on the human eye’s interpretation of two-dimensional pictures as three-dimensional objects.

10. Isometric Illusion

Simpleisomillusion

An isometric illusion (also called an ambiguous figure or inside/outside illusion) is a type of optical illusion, specifically one due to multistable perception. In the image above, the shape can be perceived as either an inside or an outside corner.

Jump into the real game of mind-melting optical trickery with Masters of Deception: Escher, Dalí & the Artists of Optical Illusion at Amazon.com!

11. Jastrow Illusion

333Px-Jastrow Illusion.Svg

The Jastrow illusion is an optical illusion discovered by the American psychologist Joseph Jastrow in 1889. In this illustration, the two figures are identical, although the lower one appears to be larger.

12. Kanizsa Triangle

300Px-Kanizsa Triangle.Svg

The Kanizsa triangle is an optical illusion first described by the Italian psychologist Gaetano Kanizsa in 1955. In the image above, a white equilateral triangle is perceived, but in fact none is drawn.

13. Lilac Chaser

400Px-Lilac-Chaser

Lilac chaser is a visual illusion, also known as the Pac-Man illusion. It consists of 12 lilac (or pink or magenta-like), blurred disks arranged in a circle (like the numbers on a clock), around a small, black, central cross on a grey background. One of the disks disappears briefly (for about 0.1 second), then the next (about 0.125 second later), and the next, and so on, in a clockwise direction. When one stares at the cross for about 20 seconds or so, one first sees a gap running around the circle of lilac disks, then a green disk running around the circle of lilac disks, then a green disk running around on the grey background, the lilac disks appearing to have disappeared or to have been erased by the green disk.

14. Motion Illusion

800Px-Anomalous Motion Illusion1

One type of motion illusion is a type of optical illusion in which a static image appears to be moving due to the cognitive effects of interacting color contrasts and shape position. To properly view this effect, click the image above to see the full sized version.

15. Necker Cube

400Px-Necker Cube.Svg

The Necker cube is an ambiguous line drawing. It is a wire-frame drawing of a cube in isometric perspective, which means that parallel edges of the cube are drawn as parallel lines in the picture. When two lines cross, the picture does not show which is in front and which is behind. This makes the picture ambiguous; it can be interpreted two different ways. When a person stares at the picture, it will often seem to flip back and forth between the two valid interpretations (so-called multistable perception).

16. Orbison Illusion

225Px-Orbison Illusion.Svg

The Orbison illusion is an optical illusion that was first described by the psychologist William Orbison in 1939. The bounding rectangle and inner square both appear distorted in the presence of the radiating lines. The background gives us the impression there is some sort of perspective. As a result, our brain sees the shape distorted. This is a variant of the Hering and Wundt illusions.

17. Poggendorff Illusion

302Px-Poggendorff Illusion.Svg

The Poggendorff Illusion is an optical illusion that involves the brain’s perception of the interaction between diagonal lines and horizontal and vertical edges. It is named after Johann Poggendorff (1796-1877), a German physicist who first described it in 1860. In the image above, a straight black and red line is obscured by a grey rectangle. The blue line appears, instead of the red line, to be the same as the black one, which is clearly shown not to be the case in the second picture.

18. Adelson’s Checker Shadow Illusion

Same Color Illusion

The image shows what appears to be a black and white checker-board with a green cylinder resting on it that casts a shadow diagonally across the middle of the board. The black and white squares are actually different shades of gray. The image has been constructed so that “white” squares in the shadow, one of which is labeled “B,” are actually the exact same gray value as “black” squares outside the shadow, one of which is labeled “A.” The two squares A and B appear very different as a result of the illusion.

19. White Illusion

White Illusion

White’s illusion is an optical illusion illustrating the fact that the same target luminance can elicit different perceptions of brightness in different contexts. Note, that although the gray rectangles are all of equal luminance, the ones seen in the context with the dark stripes appear brighter than the ones seen in the context with the bright stripes. Note that this effect is opposite to what would be expected from a simple physiological explanation on the basis of simultaneous contrast (in that case the rectangles sharing the long borders with the dark stripes should appear brighter).

20. Zöllner Illusion

480Px-Zollner Illusion.Svg

In this figure the black lines seem to be unparallel, but in reality they are parallel. The shorter lines are on an angle to the longer lines. This angle helps to create the impression that one end of the longer lines is nearer to us than the other end. This is very similar to the way the Wundt illusion appears. It may be that the Zöllner illusion is caused by this impression of depth.

Source: Wikipedia

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Jamie Frater

Jamie is the owner and chief-editor of Listverse. He spends his time working on the site, doing research for new lists, and collecting oddities. He is fascinated with all things historic, creepy, and bizarre.

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  • Wow. I really need to rest my eyes after going through all 20 of them.

    • Henry

      I am glad someone loves the Fantasme as much as I do I got this one and etanapt and illusoire the sales lady put in on just onder my eyebrows as a hightligter on top it looked great together as I think thats what you should use this colour for as an extra accent onder the brows and in the eye corner and because it has the same texture it blended very well with the epantant and or illusoire. So sorry Christine I agree on everything you posted in this great review execept what you say about Fantasme!

  • delandzadgad: I love Escher’s stuff too. I am glad you mentioned him.

    Oyster: Maybe you can sooth your head a little by listening to the top 10 Opera Performances? :)

  • oldfart

    Thank you.
    Good Sunday morning eye opener.

  • amazing post, thanks 4 that

  • Thanks guys – I am glad you like the list :) Now that you are all wide awake, check out the jokes.

  • Pretty cool stuff, thanks for sharing… I think my eyes will need a weeks rest after looking at this page… hehehe

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  • Keith: you’re welcome! Hopefully you have a job where you can close your eyes throughout the day :)

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  • really amazing. thanx

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  • WOW!!! Really amazing.

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  • I feel kinda dizzy after looking at #14 :)

  • My eyes is hurt…

  • chadster

    http://www.filecabi.net/video/file-825287490.html

    This old guy made up some pretty cool illusions for bill nye.

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  • I like these – but I still don’t believe 18 and 19…

  • Andre: open them in paint or photoshop and get a color sample on the two squares – they really are identical :)

  • Hmm, yes I see… These might have to go under conspiracies. :)

  • Andre: hehe what conspiracy? A conspiracy to trick your eyes?

  • Yeah, everybody tells you they are the same colour even the apps – but I know they are different. I will not be fooled – it is a conspiracy ! Maybe I’ll start a cult at http://www.startyourowncult.com/

  • Andre: come on now – you know you want to believe :)

  • Doghouse Riley

    For dozens of pages of incredible illusions go here:

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  • mistere

    Yeah number #18’s the best to me. I had to do the ms paint thing to that in a college class once because I couldn’t believe it till I saw it myself.

  • Sir Pooya Afaghi

    Cool! Really amazing.
    Specially: No 6, 13, 14, 18

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  • James

    im suprised the impossible triangle or the impossible staircase wan’t here.
    Good list though.

  • em

    Here’s number 21, I think this one is really freaky, like the site says:

    http://www.whatthefreek.com/illusion

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  • setayesh

    it was wonderful .thanx , i send it to all of my friend .

  • Rodo

    Great list. This is another stunning…
    Spinning Silhouette Optical Illusion.

  • Joe

    If you stare at number 13 until the purple dots disappear then move your head towards your monitor greenish streaks seem to appear towards the center from the purple dots. If you move your head away they seem to spread outwards from the purple dots.

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  • hi
    very good Amazing Optical Illusions.

    eival
    man ke koli hal kardam be ein khatahaye cheshm
    faghat khobe yeki pida she ein 20 ta ra tarjomeh koneh
    mersi

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  • Masood

    I really enjoyed & send them to all my frinds.
    GOODLUCK

  • ??? ????? ?????

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  • Comment 31: I just have no idea at all what that means!

    Rodo: I am not convinced that is real – I feel like I am being tricked!

  • Keila

    Eu não entendi nada!!!!!!!!!!

  • ????

    ???? ?????
    ???? ?????

  • ???? – alas I do not know what you are saying

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  • mistery yo

    Wow!! amzing! but my eyes feels like… ?!??
    but it’s a amazing post. ????…?????~??

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  • cas

    #13 also works without the animation. If you take just one frame and stare at the cross in the middle, the dots will gradually disappear…

  • cas: the first time I saw that illusion it was without the animation – it does work.

  • Rodo

    jfrater,

    I had the same feeling about the spinning silhouette optical illusion. In fact, I had to ask a buddy in order to discover if it was a trick or not :-)

  • Rodo

    …I mean “ask a buddy to come by to both stare at the illusion and compare impressions.”

  • Clovis Sangrail

    ooooh…. my head hurts after looking at those illusions….

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  • arash

    salam baba dast marizad chesho chalam kor shod az bas to aska zol zadam .jaleb bod.

  • Ray: haha – I should have put that as a warning in the item description :)

    • Carla

      My Chanel counter was miinssg two of these and I can’t figure out which two it was. Overall I certainly don’t need many of these, as the shades are similar to eyeshadows I already have and aren’t unique enough to warrant a change in formula. *Except* for Epatant. Oh man it’s gorgeous! My collection is sadly puny when it comes to taupey shades and that one definitely needs to be added. Thanks for the swatches! I hope you get the polishes too. Peridot is gorgeous and I already know I need it, but couldn’t take the extra few minutes to swatch the other two. Too much snobbery at the counter. *rolleyes*

  • Ray

    Wow ! Do not set your desktop background to the motion illusion 14!!

  • Mezza .k

    hehe, oww my eyes hurt. hey? y is my keyboard yellow?? maybe its the sunset lol lol lol

  • iso

    thanks for sharing really amazing!

  • ?????? ????? ?? ?? ??? ?????? ???? ????? ? ?? ?? ??? ?????. ???? ??? ?? ??? ?? ?? ??? ???? ????? ??? ????? ?? ??????? ????? ?? ??????? ??? ? ???? ???? ?? ???? ?? ????? ???? ????? ?? ???? ???? ?? ???? ???? ?? ??? ??? ??????? ????? ?? ?? ????? ????? ???? ? ????? ?? ??? ?? ?? ?????? ?? ???? ??? ?? ??????. ??? ?? ?????? ?? ????? ?? ?????? ? ?? ??? ?? ?? ??????? ????? ?? ??? ?????.
    ???? ????? ??

  • Anyone here speak Arabic? Is comment 47 a spam I should delete or a legit comment?

  • ??????

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  • mohammad

    It was very good link &I want to bring it to my teacher!?

  • mohammad: feel free to take it to your teacher

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  • wow, this is the greatness, i dont think number 18 is real, but if you say it is ill beweev it.

  • Anna

    wow #13 is my favorite
    any idea why the dots disappear?

  • bob

    i love the hermann grid illusions its mad… i also likie salad

  • Colin: It is hard to believe – but it is definitely real – I took it in to photoshop to see for myself.

    Anna: #13 is great for sure – I have no idea how it works, and when I try to figure it out by staring harder, I get a headache!

    bob: yeah – it is so illogical but it works. Glad you like salad too – it is very good for you!

  • Number 12 reminds me of pac-man, and number 14 is just like tripping on mushrooms. It looks like everything is breathing…

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  • Whoa, number 14 (motion illusion) made me kind of nauseous!

  • MAHSA

    Hi jfrater!thanks for those amazing illusions. you know jfrater?those massages with unknown languages,are in FARSI.from your iranian friends.and they all said you thanks and wished you the best.and im an iranian princes,your far friend,and wish you alllll the best!GOODLOUK!

  • MAHSA: Thank you very much for explaining that to me! And you are welcome :)

  • ben razmir

    it made me take a doody…..

  • MAHSA

    hi again jfratr!I wish you happiness.
    jfrater may I ask you a qestion?do you belive whatever you wrote in:10 TOP EVIL MEN?it was yourown idea or you just report it?im waitng for your answer.thanx!

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  • tux

    your optical illusion fuckin sux
    except for the wirefrmaed cube

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  • Same are incredible

  • Stop, please… I have headache! :)

  • HOLY MOLY!
    Awesome job, dude! :cool:

  • abbas

    hello,
    i’m searching for 4 dimonsional picture and movie for my research……pleaze help me.

  • abbas: as far as I am aware there is no such thing as a four dimensional picture – so you will have a hard time finding one :) If you do – let me know – there is bound to be a list in there somewhere!

  • barb

    Something else cool about #8 … if you scroll the browser screen up and down, it makes the lines on the sides appear to slant up or down.

    btw, I LOVE this web site! So cool!

  • Julius Canizares

    Really cool, really made my brain working.. More..

  • SuaveBugger

    A good example of a practical application of the Ebbinghaus Illusion (#5) is that if you cut the bush around your deck, your deck looks bigger.

    (just to lower the tone a little)

  • Cyn

    LOL @ SuaveBugger

  • jane

    Number 18 does my head in every time I see it

  • d.g 2.0

    this is so cool!

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  • so cool!

  • Satori

    This is probably one of my favorite illusions-

    http://www.youtube.com/watch?v=zIZcl8q0u4Q

  • satori: yeah – that dragon is really cool! I wouldn’t mind buying one of those in fact.

  • cryndigo

    Those made my eyes hurt.

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  • devilishgrin66

    Anything that MC escher has drawn.

  • AJ

    hellllll…………..
    im goin crazy………….
    r dese meant 2 mak people mad or wtever………..
    orrrrrr……is it fer d 1s who r insane n need treatment…….

  • Seen most of these before. Arethese from world-mysteries.com?

    • Jaelyne

      I’m a computer junike, i have to admit that I fall for every gadget and gimmick that comes along when it comes to computer hardware. This was no exception. I recently picked up a new laptop and thought i’d compliment it with a new mouse. Whilst shopping, I noticed this little fellow on sale and thought what a great idea the usb transmitter snaps in to the bottom of the mouse (also shuts it off so its not burning up the battery). Unfortunately the store that I spotted it at had sold out! I asked the clerk and he said the things were flyin off the shelves. Figured it must be worth a look so I went a few doors down to a competitor and found one. Great thing about buying hardware from the evil empire (Microsoft), is that it pretty much all works without downloading new drivers. Plugged the USB transmitter in, snapped the included single AA battery in the mouse (its located under the top cover btw if you dont like reading instructions like me), and it fired to life. Nice smooth tracking, worked on all surfaces i tested except for the actual screen of my laptop.. hehe All I cared about was to have an ultra-portable mouse that was wireless and worked well. I got the great bonus of, good price, easy to install, great function, perfect compatability. If it had two tumb buttons for fwd/back on web browsing, i’d write microsoft a thank you letter.

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  • zeppelingod

    great list. I love optical illusions, I had a book when I was a kid with about 7 of these. I like the one with the bricks where it looks like they are all crooked. the one with the motion is messed up :) and the spiral one, I can’t help but see a spiral…..aarrgghhh!!!! My brain is melting…Is this some sort of brainwashing? My mind is seeing things that aren’t there….

  • artist7

    It’s the devil’s work – I tell Ya !

  • StewTOWN heroes

    YOYOYYUOYOYOYOOOOOOOOOO!

    stewtoiwn heroez up in hr

    jus chillien with tha one and only STEWTOWN
    puhEACE

  • Ricardo

    number 18 is true i went thro extensive test in paint and print and cutting its true…. i can partly blame sleep deprivation at the moment though.. but i did it

  • the_miranda

    i have an idea for a good “illusion” type list! top 10 best sleevefaces! i dont know if you have already done one in which case this embarrassing.=]

  • randii =)

    .ii. [love] these *things they are sooooo -fun- :):)*

  • Jake! :)

    Good, Whilst Confusing List!
    I’m Surprised The Famous “Jesus Illusion” Isn’t On Though, If You Haven’t Seen It, Search It On Google!

  • elnrith

    the impossible cube always amazed me

    i remember a game i played called chronoc ross where at a certain point they managed to take formations such as that and somehow made it 3D so you could walka round in it…really amazing

  • prune and emmy :)

    hey ppl this is sooo suckish

  • YUI

    IT SO AMAZING

  • nomie

    wow some great illusions….. i am dissy now te he te he

  • EmmaTaylor

    what a load of crap maaan they didnt amaze me at all!!!

  • MPW

    whoa aren’t you special

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  • Taija

    You just gotta love these.

    Especially #6 is amazing; no matter how you look at it, it seems like a spiral.

  • Bones

    i love how much our eyes play tricks on us. =]

  • ChainSmirker

    fake

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  • mystical illusion

    o-m-h i

  • steph x

    Heyy this is relli cool!!!! x

  • steph x

    Ive seen better xc

  • nippy143

    wow..my eyes go blurry with the spiral illusion..nice work.! :)

  • autumnaprilamber

    Wow, that lilac chaser freaked me out something crazy!!! I couldn’t believe the dots were disappearing.

  • *blinks*

    *shakes head*

    I think I just spent 3 or 4 minutes staring at that Lilac Chaser illusion.

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  • Jomel

    omg.. my head is spinning,…nice illusions btw.

  • Aisha

    i think these images are sooooooooooooooooooo cool!!!
    but some are just a bit irratating but cool

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  • Saurabh

    Fanastic decieving pictures i was foxxxed and fprced to teflect upon every ILLUSION

  • gelu_dts

    super tare

  • Johanna

    I like very much lilac chaser , it’s very cool !

  • WOW*

    *Blink*
    *Blink*
    *Shakes head*
    *SMILED*
    OMG… That was sooooo cool!!! :D

  • morayakizi

    wawww that iss great and exciting:)

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  • malika

    THese are so beautiful pictures thanx alot

    • Dwy

      the things were flyin off the sheevls. Figured it must be worth a look so I went a few doors down to a competitor and found one. Great thing about buying hardware from the evil empire (Microsoft), is that it pretty much all works without downloading new drivers. Plugged the USB transmitter in, snapped the included single AA battery in the mouse (its located under the top cover btw if you dont like reading instructions like me), and it fired to life. Nice smooth tracking, worked on all surfaces i tested except for the actual screen of my laptop.. hehe All I cared about was to have an ultra-portable mouse that was wireless and worked well. I got the great bonus of, good price, easy to install, great function, perfect compatability. If it had two tumb buttons for fwd/back on web browsing, i’d write microsoft a thank you letter.Help other customers find the most helpful reviewsa0Was this review helpful to you?a0 | a0 Mike says:Try checking through your system preferences. Go to hardware and see if there is anything on your mouse. Worst comes to worse try calling the company. It might even be defective. That happens sometimes and if it is defective, they should replace it.james s says:there are two buttons to press for it to work one under the mouse and one on top of the little box that is connected to the usb portMister Nice Guy says:The Keyboard and mouse have a connect button underneath.Firstly, Press Connect on controller then press connect on the keyboard. Wait a few seconds. Next Press connect on the controller then press connect for the mouse. wait a few seconds. Grrr!Pandawill2010 says:@Cring0r hahahaaa, I should say Thank U . Enjoy your day!Cring0r says:nice legs MegaTooSlick says:ControrrerPandawill2010 says:@ariftariq12 you’re just kidding, pandawill always provides with a lowest price compared with other sellers. You can use the price match on our website if find a lower price at other sites, and we shall appreciate any information with which you may furnish us in this respect. Thanks for your attentionariftariq12 says:I love this it is for a327 on ebay chick it out.

  • tori

    why did you create this web site?

    its really cool!!!

  • Dany

    wow!it’s wonderful.all of them are nice & beautiful for me.
    Thanks to all.
    ????? ???? ???.??? ??????

  • Tiana

    Seriously this stuff is mind blowing. it makes your eyes feel really fuuny and also makes your feel funny. but it is AWESOME!!!

  • Cat

    umm…. this website is cool but my eyes seriously hurt now LOLLIES!!! lol LOL B

  • Cat

    this website is fully SIIIK… it is awsome!!!! but my head really hurts now… LOLLIES!!! LOL!!! THIS IS A HEAPS GOOD WEBSITE!!!! LOLIIES

  • ally

    this website is hell cool lolloes :)

  • Diogenes

    OH, Sunlight of clearity,
    spectrum of truth.
    the sorrow of gloom
    and darkness at noon.
    Help me.
    I can not take this torture anymore! The “cirvumferunce(sp?)” of my mind has taken its toll. The visual dynamics of what i once thought “A Casual Plesceantry(sp?)” , is now a vibration of dissolutionment(sp?).
    The Optical Local Island Resort of which I call reality.
    The Reality Of Optical Illusion of which I call my periphreal(sp?) side glancing glimmer and straight- a-way -bull’s eye..

    Is it not these beauties of which i reside?
    The wailing of a soul’s tether. a life line?
    haven’t the youthful muppets kept me from becoming dull?

  • m0nk3yhum0r

    on #13 all the dots vanished… weird

  • bunnyboo

    there absolutley amazing but the cylender one i definatley not true at all, its ovious!

  • Ria and Sharon

    OMG this is sooo cool i cant belive this is true and i got almost all of them right and the person speaking right now is ria and sharon says…… hi that is so cool how do yu make these stuff and ria says MY EYES HURT!!!!!!!!!!!!!(so does sharons) :D:D:D

  • babycakes

    i loooooooooved it!
    didnt hurt me eyes like the rest of you.
    not meaning to brag.

    jeepers hahah
    u need to put more up here
    :]

  • rafterman

    18 fooled me. I had to take it to MSpaint, even after I read countless comments about people doing just that and saying the illusion was correct. I had to see it for myself. My mind is blown.

  • wow nman nka2mangha!!!

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  • pattu

    i liked it but they are nearly available on every site

  • Asma Riaz

    This site rokzzzzzzzz!!!

  • ~~RonnerS~~

    wow these were so cool
    i understood every single one
    :P

  • Devin

    if you don’t believe #18 (I didn’t,) copy the image and paste it into MS Paint. Use the eye dropper tool and sample the colors in A and B, and scribble in the white with them. They’re the same!
    And if you draw a line with that color from A to B with that color, it’s even weirder.

  • Becca

    OH MY GOODNESS!!
    They were awesome!!

  • Arnee_is_me

    wow these are cool! #13 has made my eyes hurt like hell.

  • this is sooo weird but some I don’t get they could atleast tell us, what to do with the illusions but they are really cool

  • Winnie

    These arnt as good as the others i,ve seen on other websites but still great.XXX

  • badabing

    I thought this was interesting!
    http://www.youtube.com/watch?v=vzSRVgF501M

  • winnie the pooh

    will this website help me with optical illusions homework?XOXO happy valentines day

  • deano147

    the lilac chaser is a lie!
    i check the properties which state the image type as “GIF image (animated, 12 frames)”
    coincidence????

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  • selina

    coool this webcite is awesome i liked the 1 with the bendi’n line ^_______^

  • Hayzel

    This is the coolest website ever!!!!!!!!!!!!
    I will come on it all the time!!!!!!!!!!!!!!
    How did they find all those illusions????!!!

  • SexyRocker

    BORIINNN

  • pinky505

    hahahaha i luv these illusions tnx
    put some more on hahhahahhaa

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  • Eyestrain Jr.

    #14 is off the hook!
    I’m going to make it the desktop background for people I hate!

  • wicked

    that is crazyyyyy lol

  • kristina

    awesome illusions. need to put more on the site tho. my favorite one is the lilac chaser. put sum more on th site like that one. ? ? ? ?

  • Georges Mjaess

    I love it! those are cool ones !

  • em0703

    the first is simply incredible, although i’ve seen it before. i got so curious i even opened paint to colour those parts to figure out what the real shape of that object was. well it’s impossible! someone did a great job creating that kind of optical illusion.

  • Ternistato

    This is incredible! These optical illusions are unbelievable. Absolutely fantastic!

  • weirdo

    these are really weird

  • joe jonas

    whoa……i guess this is the right sight 2 declare that i’m gay………….its official now:)

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  • Caitlyn

    Cool… :)

  • rain

    There’s also a optical illusion on Jesus Christ.
    When you stare at a silhouette of Christ for about 30 seconds you’ll see Him everywhere. . .
    It’s kinda creepy but cool.

  • carl

    uhhhhhhhhhh…………woa!

  • pippin

    wow there cool my eyes r weird now :S

  • butterflygirl777

    i don’t see the distortion in number 16??

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  • emileous xx

    this is quite cool it makes your eyes go weird lol=):)

  • 1 and 9 are infuriating!

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  • Elizabeth

    IDK about anyone else, but in #3, my eyes see the bricks move side to side, along with the "slanted" lines.

  • flyleaf

    panget lhat eh hahahhaha

  • otcconan

    #2 does not work on me. I am colorblind.

  • LostMusicalMeanings

    15 freaked me out
    I blinked and I saw a different perspective of the illusion then blinked again and it was to its original form again.

  • jim
  • 1552HONEYDU

    THESE ILLUSIONS ARE COOL… I LLLLLLLLOOOOOOOOOVVVVVVEEEE NUMBER 13…..

  • Twang

    I don’t really get #19. It does appear as if the stripes on black slightly shrink when I stare at them, and the stripes on black appear to expand.

  • MrRice

    18. Adelson’s Checker Shadow Illusion
    I went into photoshop and deleted everything accept a-b.
    Put them side by side and I couldn’t believe my eyes they’re the same color.

  • anina

    gud…. nice illusions…
    thankyou!!!!

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  • George

    Great illusion,i have taken all of them.thank you so much,i love listverse its my one of the favarote website

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  • gabi

    COOL OPTICAL!!!!

  • inisenags

    Name

  • jamine

    hi

  • ravi

    hehehehheheheheh

  • juvin

    the illusions are too amazing than my cellphone

  • megan

    hahahahahahahahahahahahahahahahahaha

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  • eric hopkins

    cool illusions..try this one i created…..1.start with an equilateral triangle.2draw a straight line from each of the inside corners to the adjacent side of the triangle..make sure the line goes from the the inside corner to the EXACT CENTER of the adjacent side. do this to every yriangle formed by drwing the lines.you will then notice that the line you draw intersect and connect to form a 3D cube in the center of the triangle.

    Challenge for the world: once you mastered the procedure to produce the cube, try this with a three sided equilateral pyramid…do the exact same thing to Every triangle even the base of the pyramid. what shape forms now……i havent tried this but i was curious to know how it would turn out

  • Erwin

    brain twisting!! i’m so dizzy my god…

  • Alfie.K.

    It was stupid! I thought Mr Graham was gonna show us something good but this was totaly RUBISH! What rubbish lesson never gonna like SEVEN again!!!!!!!!

  • Ella

    uh this was a great help thanks!

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  • Sundance Vacations

    I’ll right away snatch your rss as I can’t in finding your email subscription link or newsletter service. Do you have any? Kindly let me realize in order that I may subscribe. Thanks.

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  • H.L.G.

    cool my favorite one was lilac chaser!

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  • Mr.Nobody

    Shut up jfrater. FK UR MOM

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