What is an Optical Illusion? An optical illusion is a visual phenomenon where the brain misinterprets what the eyes see.

This optical illusion challenges you to find the hidden number 623 among 628s in just 32 seconds. If you believe you are ...

A couple of years ago an optical illusion came along and almost broke our site. Over three million people read an article about the most dizzying illusion ever to grace our screens – the rotating ...

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

The Escher Loop optical illusion creates a staircase that appears endlessly climbable yet never reaches a higher point. Using impossible geometry and 3D depth tricks, the mind is fooled into ...

Ready to challenge your brain and your eyes at the same time? This optical illusion and IQ-style test is designed to check ...

Have you ever looked at something, only to realize it was something completely different? That’s the power of optical illusions: they trick our brain using color, light, and patterns. ‍ 勞 We’ve ...

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 ...

A viral optical illusion featuring overlapping leaves hides the number “47,” which most people miss at first glance. The ...

A baffling optical illusion that appears to show a woman floating in mid-air has left people puzzled as they try to work out what is really going on ...

The art of optical illusion has been an integral part of painting since antiquity when it was used as a yardstick by which to judge an artist's level of mastery. This book presents a fascinating ...