Close your left eye and stare at the cross. As the circle moves left and right, it should pass through your blind spot and disappear completely! You may need to lean in closer to get this to work.
As the small circles intersect with the large ones, we seem to see the outlines of a growing and shrinking square. But there is no "square" -- your brain is trying to visualize in terms of solid shapes, and fills in the blanks.
Look at the red dot for a while and gray stripes will disappear
Although you dont believe it, these lines are straight and parallel
These two birds are identical, not only in size but in color too.
These "fish" may appear to be wiggling, but the only thing changing in this animation is the color.
What do you see here at first glance? The yellow arrows pointing to the left or green arrows pointing to the right? There is no correct answer. Different people see different arrows at first (I saw the yellow ones)
First, look at the image at a close distance, then look at it from 1 meter distance
Hover you mouse cursor over the picture. Does it move?
Which direction is the cat rotating: clockwise or anticlockwise? Once again, different people will see different direction. I see it rotating in a clockwise direction. With practice, you can make it switch at will!
These spirals are spinning only in your head ;)
Three illusions in one! This three-in-one illusion includes a false spiral, an impossible Escher-esque structure, and what appears to be a seriously warped floor...
Are the walls of this house facing outward, or inward?
Which of these two dots is in the true center of the circle
(answer-green)
Can you tell which of these cars is the largest?
Here's a simple one. Are these two rows of squares perfectly parallel?
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