An optical illusion showed a bird camouflaged in tree bark, leaving viewers puzzled as they struggled to spot it.

In this video, I explore my fascination with magic and optical illusions by building five furniture chair optical illusions.

Most users who have come across the illusion end up scanning line after line with narrowed eyes, trying to catch the difference. A few find it within seconds. Others keep staring until they give up.

From shifting colours to phantom rays, these five challenges reveal how easily your mind can be fooled by light, contrast, ...

This optical illusion reveals whether you're more emotionally intuitive or logically analytical based on what you see first, ...

Optical illusions use light, colour and patterns to cause a viewer to see something that's completely different to reality ...

Optical illusions have been bending our brains for centuries, delighting and confusing viewers in equal measure. Coming in many different forms, these mind-blowing popular optical illusions are a ...

Challenge your cognitive abilities with this perplexing optical illusion! A grid of seemingly random letters hides a clever ...

The Museum of Illusions has opened at The Gateway in downtown Salt Lake City. It's the company's second-largest location in ...

Optical illusions aren't just made for entertainment purposes, but they're a perfect way to test your knowledge as well as ...

For less terrifying optical illusion murals see these brilliant artworks made with a spray can. And if you want to continue ...