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.

A captivating optical illusion, the rabbit-duck image offers valuable insights into how our brains operate. Depending on ...

Our pick of the best optical illusions of all time will leave you amazed and confused in equal measure.

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Illusions like these mess ...

This optical illusion by artist Oleg Shupliak features a sketch of a woman, but there are actually four women hidden in plain sight – but good luck finding them all!

Medical imaging experts are adept at solving common optical illusions, according to new research. The research is the first to show that people can be trained to do better at solving visual illusions, ...

Architects and artists have clever ways of confusing your eyes and creating optical illusions with their building designs.

Our brain and eyes can play tricks on us—not least when it comes to the expanding hole illusion. A new computational model developed by Flinders University experts helps to explain how cells in the ...

An optical illusion by Ukrainian artist Oleg Shupliak has left people scratching their heads as they desperately try to spot the hidden image lurking within the artwork ...

An optical illusion personality test reveals your current nervous system state by asking if you see a bird or a cage first.

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Getty Images ...