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 ...

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

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 ...

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

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 ...

Optical illusions come in all forms, from simple tricks of the eye to complex geometric designs, but my personal favourites ...

This garden photo hides a well-camouflaged cat in plain sight. See if your eyesight is sharp enough to find it in under 10 ...

Just in time for Halloween — how you view this spooky optical illusion will determine if you’re smart, optimistic, or intuitive. Shared by Your Tango last year and updated in June, the black-and-white ...

That's where this ingenious makeup hack came in. Using carefully placed shadows and highlights, the makeup team created an optical illusion look that truly terrified viewers. Forget fancy SFX or ...

While designer Eric Lu’s Ghost Font isn’t necessarily the silver bullet needed to stop AI from completely devouring the internet, it’s still an ingenious proof-of-concept experiment that highlights ...