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 ...

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 ...

Optical illusions play tricks on your brain and can make you see things that aren't really there, from static images swirling around the page to images that stay with you even after you look away.

It’s natural for humans to feel curious about the animals in the world around them, especially the cute ones. That’s probably why we love to watch cute animal videos online. And often, we start to ...

Chances are you’ve encountered some version of the “Ebbinghaus illusion,” in which a central circle appears to be smaller when encircled by larger circles and seems larger when surrounded by smaller ...

You’re in the top one percent of people if you can find all the animals in this mind-bending optical illusion – so how many can you spot? When you first glance at the image you might not realize it ...

It's not just humans who notice optical illusions; certain animals do too, and they often use it to their advantage. When you purchase through links on our site, we may earn an affiliate commission.

Researchers found an optical illusion triggers the pupils to dilate as if light were dimming. It provides clues about how the brain processes images. The image is by Japanese researcher Akiyoshi ...

A new attraction on the Third Street Promenade is turning heads — and perspectives — as the Museum of Illusions officially opens its doors in Santa Monica. The immersive space spans 12,000 square feet ...