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 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 ...

Think you have great attention to detail? Put your skills to the test by finding the hidden cat in this Christmas tree–themed ...

Optical illusions are great at testing your visual perception and seeing how your brain interprets visual context, subtle ...

Sometimes, reality plays tricks on us — and what seems obvious at first glance turns out to be something completely different. From perfectly timed photos to clever illusions created by pure ...

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.

Are you old enough to remember the “Magic Eye” optical illusion mania that gripped the nation in the 90’s—random patterns that you had to squint at just right for the 3D image to pop out? It turns out ...

BOSTON — As an adult, I had a good time at the Museum of Illusions. If I were 10 years old, it would have been the greatest thing I’ve ever seen. Tucked into a double-decker row of shops on the ...