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.

Israeli artist Dudi Ben Simon masterfully transforms the ordinary into the extraordinary, turning the world into his creative playground. With a keen eye for illusion, he blends everyday objects and ...

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 ...

For the first time, research shows that a certain kind of visual illusion, neon color spreading, works on mice. The study is also the first to combine the use of two investigative techniques called ...

A head-scratching optical illusion challenges the perception of color and how the brain plays tricks on us. In an image created by the UK contact lens vendor Lenstore, a series of lilac letters ...