Our pick of the best optical illusions of all time will leave you amazed and confused in equal measure.

This brain-frazzling optical illusion is enough to put your head into a spin. The purple-and-yellow image looks as though it’s both three-dimensional and moving but is in fact stationary and flat.

An optical illusion personality test reveals your current nervous system state by asking if you see a bird or a cage first.

Credit: ForsakenAd2845 via Reddit When the worlds of art and optical illusions combine, beautifully brain-boggling delights are bound to ensue. The latest to prove this point is a recent viral video ...

Once in a while, an optical illusion fools you in a such a sneaky way, it makes your eyes do something you’re not aware of. Look at the image at the top of this story—a black hole surrounded by black ...

Researchers from Tokyo Metropolitan University showed that visual aids that create the illusion of movement, like a screen placed in front of one's hand showing the hand move, can improve motor ...