Optical illusions are older than you think. The first optical illusions date back to 20,000 BC and took the form of cave sculptings. Nowadays they are found all over the place – on screens, in books ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Nataliia Nesterenko via Getty Images A truly mind-bending optical illusion is attracting ...

A grayscale ballerina who appears to be moving. A human who can fit in a doll box. A black-and-white prism which appear to change shape when viewed from three different directions. Those are the top ...

What is an Optical Illusion? An optical illusion is a visual phenomenon where the brain interprets the information gathered by the eye in a way that does not match physical reality. In simple terms, ...

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 ...

How optical illusions work has been long-debated among scientists and philosophers, who wonder whether these illusions stem from neural processing in the eye or involve higher-level cognitive ...

If you have never seen an optical illusion, it is an image that makes you see things differently than they actually are. Optical illusions trick your eyes into believing you see something that is not ...

Optical illusions are spreading like wildfire on the internet. One such challenge that is going viral on Reddit will leave many experienced players muddled. This viral optical illusion tests the ...