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An archive of visual illusions, optical illusions, and weird illusions to challenge your mind. Many of the images you will find here demonstrate the visual phenomena and will be explained briefly. If you would like to improve upon any descriptions here please contact me with your recomendation. I welcome your feedback.

Albert Einstein Marilyn Monroe IllusionAlbert Einstein Marilyn Monroe Illusion - When you look at this picture close range you see Albert Einstein. Now stand up and take several steps back, roughly 15 feet away, It will become Marilyn Monroe.

Double Picture IllusionDouble Picture Illusion - A double picture illusion which results in different things for different people.

Sphere Size IllusionSphere Size Illusion - A visual illusion of two spheres. Does one appear to be larger than the other? Both of the spheres are the same size.

Elevator Floor or Long Drop?Elevator Floor or Long Drop? - A very neat optical illusion elevator floor. So clever you would think twice before stepping into this elevator.

Right or Left WindowRight or Left Window - Is this window on the right or left of this building?

Wavy Lines IllusionWavy Lines Illusion - Are these lines straight and parallel? Use a straight edge to test what you see.

Graffiti Stairs IllusionGraffiti Stairs Illusion - In this subway, this guy spray painted the wall to appear as an illusion of the stairs coming out of the wall.

Interesting ObjectInteresting Object - Here we have an object that may have been photoshopped.

Rotating Dot WhirlpoolRotating Dot Whirlpool - Try staring at this for more than 5 seconds without going crazy. Then try following it around! Curves constantly die out and then re-evolve as part of another curve.

The Bezold EffectThe Bezold Effect - The Bezold effect is an optical illusion, where a color may appear different depending on its relation to adjacent colors.

Barber Pole illusionBarber Pole illusion - The Barber pole illusion is a visual illusion that reveals biases in the processing of visual motion in the human brain.

Gradient illusionGradient illusion - Simultaneous Contrast Illusion. The horizontal gray bar is the same shade throughout.

Ponzo IllusionPonzo Illusion - In the Ponzo illusion the converging parallel lines tell the brain that the image higher in the visual field is further away therefore the brain perceives the image to be larger, although the two images hitting the retina are the same size.

Face VaseFace Vase - In this illusion the figure and the ground are reversible in all ways.

Kanizsa TriangleKanizsa Triangle - In the accompanying figure a white equilateral triangle is perceived... but in fact none is drawn. This effect is known as a subjective or illusory contour.

The Penrose TriangleThe Penrose Triangle - The Penrose triangle is considered the impossible figure. The Penrose triangle appears to be solid on the page, but it cannot be built.

The Spinning DancerThe Spinning Dancer - The Spinning Dancer appears to move both clockwise and counter-clockwise. Stare at her long enough and you will be able to see her rotate both ways.

The Lilac Chaser aka Pac-Man IllusionThe Lilac Chaser aka Pac-Man Illusion - Lilac chaser is a visual illusion, also known as the Pac-Man illusion.

Glass Tesseract AnimationGlass Tesseract Animation - This is an interesting illusion animation. It has a very neat effect.

Realistic Dice IllusionRealistic Dice Illusion - As you look at these dice, try to determine if they are standing up, or laying flat.

Black Dot Optical IllusionBlack Dot Optical Illusion - Stare at the dark dot in the center for 10 seconds... Now move your head forward and backward. As your head moves closer to your monitor and then back away from your monitor, the circles will appear to be spinning.

Moving Spiral IllusionMoving Spiral Illusion - Stare at the center for 10 seconds and begin moving your eyes around the outer perimeter... Does it appear to be moving, shimmering, or just making you dizzy?

Elephant Leg IllusionElephant Leg Illusion - How many legs does this elephant have? 4, 5, 6, maybe 7?

Crazy Line IllusionCrazy Line Illusion - Analyze the 2 Purple lines. Do they appear to be Straight Or Crooked?

Crazy Objective Schematic IllusionCrazy Objective Schematic Illusion - Is it possible to build this gadget? Look Closely and try to determine the orientation of the picture!

Tallest Soldier IllusionTallest Soldier Illusion - Can You Pick Out the Tallest Soldier? Did You Find Him? Hmm... They Are All the Same Height!

Landscape Of Faces IllusionLandscape Of Faces Illusion - Do You See A Landscape of Faces? There are quite a bit. See how many you can count.

Impossible Monumental ColumnsImpossible Monumental Columns - Are the columns square or round? Will they support anything?

Schematics ConfusionSchematics Confusion - Try to determine the orientation of the items! Perception is off a little... Look Closely! This one will leave your mind confused...

Reversible PictureReversible Picture - What do you see in each picture after it is flipped... Look Closely!

Crazy Line TrickCrazy Line Trick - Are These Lines Straight Or Crooked? Look Closely! Every Line Is Straight!

Courtyard or Terrace IllusionCourtyard or Terrace Illusion - Is this a Courtyard or Terrace? You Decide...

The Wacky SpiralThe Wacky Spiral - Do You See A Large Spiral? Well, if you do, You are WRONG. If you look very closely you will see many independent circles.

Building Block IllusionBuilding Block Illusion - Do you think it is possible to build this block from the blueprint? It's virtually impossible.

Rabbit or Duck IllusionRabbit or Duck Illusion - Do you see a Rabbit or a Duck? If, you Look Hard, You Can See Both!

The Picture Of Many FacesThe Picture Of Many Faces - How many faces can you see? Do you see an Elderly Woman, Young Lady, or Man?

Double Imaging PictureDouble Imaging Picture - Do you see the face? Or an Eskimo? Good Luck Figuring It Out!

Cube Optical IllusionCube Optical Illusion - Is the small cube inside a larger cube? Or do you see a small cube on the outside of a larger cube?

Colored Cube Optical IllusionColored Cube Optical Illusion - Is the blue side on the inner left back or the outer left front? Good Luck Figuring It Out!

Do you see a spiral?Do you see a spiral? - Do you see a spiral? Actually, these are a bunch of independent circles! Creating the illusion of a spiral...

Triangle IllusionTriangle Illusion - Take a close look at this so called triangle! Try to perceive its' orientation. Seems impossible.

Circle IllusionCircle Illusion - Is the left center circle bigger? Actually, they're both the same size.

Skull illusionSkull illusion - Take a very close look at this image! Do you see a couple or a skull?

What do you See?What do you See? - Do you see a face? Or do you see the word Liar?

Stair IllusionStair Illusion - Take a very close look at this image! What do you see? Now, imagine yourself walking in a clockwise fashion. These stairs NEVER end! You will go up and up and up.

Presidential IllusionPresidential Illusion - Take a very close look at this image! Who do you see? Looks like Ex-President Bill Clinton right?

You Were on my MindYou Were on my Mind - Take a very close look at this image! What do you see? Sex is on a man's mind.

Five Hidden WolvesFive Hidden Wolves - Take a very close look at this image! Look closely to find 5 wolves hidden in the picture.

How many colors where used?How many colors where used? - Take a very close look at this image! How many colors where used to make this image?

How many faces?How many faces? - Take a very close look at this image! How many faces can you find in this picture?

What do you see?What do you see? - Take a close look at this image. What do you see? Do you see a Beautiful Woman? Or a Cool Jazz Horn Blower?

Gray Circle IllusionGray Circle Illusion - Stare at the black dot... Did you see the Gray circle disappear?

The Color QuizThe Color Quiz - Look at the chart and say the color, not the word. Your right brain tried to say the color, but your left brain was reading the word.

Crawling Bug Spiral IllusionCrawling Bug Spiral Illusion - Please wait a moment until the spiral has finished loading. When it's spinning smoothly, stare at the center of the spiral for about a minute.

How Can This Be True?How Can This Be True? - How Can This Be True? If the partitions are the same, shouldn't every space be filled?

Face or IllusionFace or Illusion - Photo taken by Viking 1 in 1976. What do you see? Is it a Face or just an Illusion?

Checker Board IllusionChecker Board Illusion - Checker Board Illusion... Take a very close look at Block A and Block B. Do you think that the colors are a different shade of gray?

Vertical Lines or Not?Vertical Lines or Not? - Take a very close look at the 2 vertical lines. Do you think one line is longer than the other?

The Crystal BallThe Crystal Ball - Take a very close look at this image! Stair at the very center crystal ball. Move your eyes very close to the screen and then move away.

Stare at this ImageStare at this Image - Stare at this image as long as you can. It will eventually drive you crazy...

Count The Black DotsCount The Black Dots - Try and count the black dots. How many do you come up with?

Stare at the CirclesStare at the Circles - Stare at the Circles Below and determine if they are moving or not...

The Moving ManThe Moving Man - Does it look like he is moving to you? Well, he's not!

Face on EarthFace on Earth - Take a look at the picture below... Can you see the Face on earth?

Light Bulb IllusionLight Bulb Illusion - Stair closely at this light bulb for 20 - 25 seconds. Then immediately stare at a white area on the screen or at a sheet of paper. You should see a glowing light bulb!

What do you see?What do you see? - Take a close look at this image. What do you see? Do you see an old man's face or two lovers kissing?

Find The DogFind The Dog - Take a close look at this image. Can you find the doggy in this picture?

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