While new optical illusions go viral all the time, here are some of the most famous illusions that have kept us scratching our heads for years.

Printing is believing.

From The Dress to legless women, the internet is filled with optical illusions that are both accidental and intentional.

The optical illusion inside butterfly wings is similar to the barber-pole illusion. When looking at the red-and-white striped ...

Optical illusions are older than you think. The first optical illusions date back to 20,000 BC and were seen in caves. Nowadays they are found all over the place – on screens, in books and even in ...

Optical illusion personality tests are interesting images that trick the brain and eyes into perceiving what a person sees first, despite the many objects clearly hidden in the image.What makes these ...

You look at an image of a black circle on a grid of circular dots. It resembles a hole burned into a piece of white mesh material, although it’s actually a flat, stationary image on a screen or piece ...

Scientists say buterfles' flapping patterned wings create motion illusion effects that "scramble" predators' aim.

These mental litmus tests will melt your mind. Puzzle lovers are straining their brains trying to solve a trio of baffling optical illusions, which reportedly reveal how the viewer’s mind works. A ...

Optical illusion personality tests are interesting brain teasers that trick the brain and eyes into believing what a person ...