After ink blot, MBTI, and other personality tests, optical illusions and puzzles are becoming a fun and viral way to understand more about our psyche. Yet another optical illusion is now going viral, ...

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.

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A video showing an unexpected optical illusion captured in a parking ...

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 ...

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 ...