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.

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Hinnerk ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Matt Pritchard If ...

There is no glue, no cutting—only precision, patience, and a deep understanding of form.

Everyone loves an optical illusion — even if they leave us completely stumped — and they're all around us in the natural world. From an underwater waterfall in the Indian Ocean to a surrealist scene ...

With her mindblowing optical illusion looks, the artist has amassed an audience of 1,7 million followers.

Most people use the terms “optical illusion” and “visual illusion” interchangeably, much like “fluid” and “liquid” or “sofa” and “couch” are synonyms. At first glance, this might be seemingly pedantic ...

Optical illusions have a sneaky way of messing with your brain. One second you think you’ve got it, the next - you’re ...

Two NASA astronauts had some fun during the ISS' capture of a robotic cargo spacecraft on April 13, pretending to hold onto ...