Challenge your brain with this viral motion optical illusion that tests binocular vision and observation skills.

Illusion is derived from the Latin verb illudere, which means to mock or trick. Optical illusion pictures are designed to trick the human mind and are regarded as one of the simplest tests to ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Nastynice1 via Reddit A supposedly 3D optical illusion has been posted online and is ...