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.

This mind-bending optical illusion by Ukrainian artist Oleg Shupliak has stumped 98% of viewers - can you find all four women ...

A fun optical illusion has been shared online which may suggest whether you're a positive person or prefer to keep your distance from others and it all depends on what you see first ...

Discover mind-bending optical illusions that will leave you questioning what you see. These incredible visual tricks twist ...

From The Dress to legless women, the internet is filled with optical illusions that are both accidental and intentional.

Illusions like these mess with the brain's visual processing system, making viewers see things that aren't there in reality. | Credit: Eva Almqvist via Getty Images Optical illusions play tricks on ...

Optical illusions trick the eye and brain into seeing what a person sees at first glance, despite many objects hidden in the ...

It’s an eye-nigma. The internet is blowing a collective gasket over a perplexing optical illusion that can purportedly only be solved by 1% of people. The visual jigsaw was first shared in November by ...

It’s like putting on ugly goggles. Puzzle lovers are getting the heebie-jeebies over this “freaky optical illusion,” which makes people’s faces look hideously distorted. A now-viral video detailing ...

Medical imaging experts are adept at solving common optical illusions, according to research from four UK universities, including the University of East Anglia. The correct analysis of medical images ...