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.

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

(George Pachantouris/Moment/Getty Images) For 2,000 years, the architects behind the iconic Parthenon temple in Greece have had praise heaped on them for the clever optical illusions hidden in its ...

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

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. The Parthenon's elevated architectural status reignited during the Enlightenment. But recent analysis says otherwise. After a ...

If you can spot the 16 circles here, you’re spot on. A renowned optical illusion from the mid-2000’s is circulating on the internet once again, posing the challenge of finding each of the hidden round ...

People have been left baffled by a world-famous optical illusion featuring two women – with many people declaring they can only see one. The pencil drawing appears to show a young woman wearing an ...

Optical illusions are great fun, and they fool virtually everyone. But have you ever wondered if you could train yourself to unsee these illusions? Our latest research suggests that you can. Optical ...

This famous optical illusion is said to test the viewer’s relationship and reveal how they communicate with their partner. Le Baise (French for “The Kiss”) is a well-known artwork by Russo-Polish ...

To see is to bilib the optical illusions on 'iBilib' See the tricks and believe the impossible in the upcoming episode of iBilib! Join award-winning host and Kuya ng Bayan Chris Tiu, Sparkle ...

India has some really intriguing optical illusions that escape the eye of many Optical Illusions in India: From panoramic viewpoints, thrilling adventures, historical vestiges, refreshing backwaters, ...