Welcome to the archive of optical illusions, an archive of illusions that play tricks with your brain.
Many of the images you will find here demonstrate visual phenomena, and optical or visual illusions.
You will learn about the complexities of the human eye first hand.
Visit the optical illusions below and give your eyes and brain the time of their lives!
Right or Left Window
Is this window on the right or left of this building?
The 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.
Elephant Leg Illusion
How many legs does this elephant have? 4, 5, 6, maybe 7?
Elevator Floor or Long Drop?
A very neat optical illusion elevator floor. So clever you would think twice before stepping into this elevator.
The 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.
Realistic Dice Illusion
As you look at these dice, try to determine if they are standing up, or laying flat.
Graffiti Stairs Illusion
In this subway, this guy spray painted the wall to appear as an illusion of the stairs coming out of the wall.
Landscape Of Faces Illusion
Do You See A Landscape of Faces? There are quite a bit. See how many you can count.
The Lilac Chaser aka Pac-Man Illusion
Lilac chaser is a visual illusion, also known as the Pac-Man illusion.
Here we have an object that may have been photoshopped.
Moving 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?
Black 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.
Glass Tesseract Animation
This is an interesting illusion animation. It has a very neat effect.
In this illusion the figure and the ground are reversible in all ways.
How Can This Be True?
How Can This Be True? If the partitions are the same, shouldn't every space be filled?
Rabbit or Duck Illusion
Do you see a Rabbit or a Duck? If, you Look Hard, You Can See Both!
Sphere 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.
Crawling 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.
Take a very close look at this image! Do you see a couple or a skull?
Impossible Monumental Columns
Are the columns square or round? Will they support anything?
The Picture Of Many Faces
How many faces can you see? Do you see an Elderly Woman, Young Lady, or Man?
Wavy Lines Illusion
Are these lines straight and parallel? Use a straight edge to test what you see.
Try to determine the orientation of the items! Perception is off a little... Look Closely! This one will leave your mind confused...
Tallest Soldier Illusion
Can You Pick Out the Tallest Soldier? Did You Find Him? Hmm... They Are All the Same Height!
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?
You Were on my Mind
Take a very close look at this image! What do you see? Sex is on a man's mind.
Count The Black Dots
Try and count the black dots. How many do you come up with?
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.
Double Imaging Picture
Do you see the face? Or an Eskimo? Good Luck Figuring It Out!
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 Triangle
The Penrose triangle is considered the impossible figure. The Penrose triangle appears to be solid on the page, but it cannot be built.
Barber Pole illusion
The Barber pole illusion is a visual illusion that reveals biases in the processing of visual motion in the human brain.
Face on Earth
Take a look at the picture below... Can you see the Face on earth?
Simultaneous Contrast Illusion. The horizontal gray bar is the same shade throughout.
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?
The Bezold Effect
The Bezold effect is an optical illusion, where a color may appear different depending on its relation to adjacent colors.
Crazy Objective Schematic Illusion
Is it possible to build this gadget? Look Closely and try to determine the orientation of the picture!
The 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.
Light 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!
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.
Reversible Picture -
What do you see? -
Crazy Line Trick -
Crawling Bug Illusion -
Stare At This Image -
Crazy Line Illusion
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