Today’s optical illusion is a little trickier than the rest of the days. Apart from testing your eyes, we are also interested in knowing how much focus and concentration you have, which can enhance ...

A viral optical illusion test claims to reveal your current state of mind based on whether you see a shark or feet first.

An optical illusion shared by Dasha Takisho offers a quick personality insight. Look at an image and see if a crow or a man's face appears first. This first impression may suggest inner anxiety or ...

Your first glance at an optical illusion reveals surprising personality traits. Spotting a frosty tree suggests a protective, ...

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.

Add Yahoo as a preferred source to see more of our stories on Google. An exhibit featuring optical illusions and how they mess with your head is set to open at Orlando Science Center on Sunday.