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.

These three optical illusions seem to exist in a parallel universe in this viral video. "You didn't beat the gravity you just beat my brain," wrote one baffled TikTok commenter. These mental litmus ...

The internet is blowing a collective gasket over a triple-tiered eye test in which objects seem to disappear and appear right before the viewer's eyes. Twitter It’s the multiheaded hydra of optical ...

NEW YORK--Manhattan has a new museum that aims to boggle the mind. The Museum of Illusions opened this week in a historic old bank building in Chelsea. It has more than 70 exhibits based on science, ...

Optical illusions occur naturally in different habitats and conditions across the world. Cloud formations can sometimes make it seem like there's an ocean or a UFO in the sky. Whether it is salt flats ...

Say you're staring at the image of a small circle in the center of a larger circle: The larger one looks green, but the smaller one appears gray. Except your friend looks at the same image and sees ...

Museum of Illusions at Mall of America is a fun attraction in Bloomington, Minnesota. It’s fun for both kids and adults and a ...