Optical illusions often go viral, but they've been around long before social media. Here are 10 historical illusions that still leave people puzzled.

Back in the 1960s, scientists found an illusion that only seemed to work on affluent westerners, but new research is calling ...

Have you ever stared at a picture and felt your brain quietly change its mind?This is the clever trick behind optical ...

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 ...

It’s like putting on ugly goggles. Puzzle lovers are getting the heebie-jeebies over this “freaky optical illusion,” which makes people’s faces look hideously distorted. A now-viral video detailing ...

Justin Peters uses Photoshop to create amazing digital collages and optical illusions that will make you do a double-take, ...

Medical imaging experts are adept at solving common optical illusions, according to research from four UK universities, including the University of East Anglia. The correct analysis of medical images ...

Elon Musk is on top of the world after Twitter accepted his $44 billion buyout offer on Monday. But the Tesla founder, 50, appears upside down in a new optical illusion that highlights how easy it is ...

In this video, I combine my passion for magic and optical illusions with furniture building by creating five optical illusion ...

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Researchers shot butterflies taking off in super slo-mo and found the patterned wings may actually be an optical illusion to make predators miss ...

A bird attacking a butterfly will often find its beak snapping at thin air. According to new research, that split-second miss isn't just bad luck. It's caused by a visual illusion from the butterfly's ...