Optical illusions are the latest obsession on the internet. Thousands of people who prefer challenges that improve concentration have made these viral brain teasers a favorite pastime. Do you like to ...

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 have always managed to play tricks on our minds. They bend reality, shift shapes, and make us question what we see. Some illusions are simple patterns that confuse our eyes, while ...

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 ...

Scroll down to see loads of other tricky brain teasers DRIVERS are testing their visual acuity with a new brain teaser game. An optical illusion shows a group of EV batteries having one hidden, empty ...

Everyone loves an optical illusion — even if they leave us completely stumped — and they're all around us in the natural world. From an underwater waterfall in the Indian Ocean to a surrealist scene ...