Optical llusions are a great tool to exercise your brain. If you enjoy solving tricky puzzles, finding hidden objects in ...

It may look like a digitized Jackson Pollock painting, but hidden in this haze of color is a number — if you can see it. Puzzle lovers are going crazy for this head-scratcher optical illusion that has ...

A new optical illusion is here, and it is a lot trickier than it looks. The image has a grid of 14 columns and 9 rows. The ...

An engaging optical illusion challenges viewers to find the hidden number 1 amidst a sea of 7s. This visual puzzle tests the brain's ability to overco ...

Optical illusions are older than you think. The first optical illusions date back to 20,000 BC and took the form of cave sculptings. Nowadays they are found all over the place – on screens, in books ...

A grayscale ballerina who appears to be moving. A human who can fit in a doll box. A black-and-white prism which appear to change shape when viewed from three different directions. Those are the top ...

The Best Illusion of the Year contest offers researchers, and participants, an opportunity to explore the gaps and limits of human perception. By Katrina Miller Take a look at this video of a waiting ...

Visual illusions are images that play tricks with our eyes and brain. These puzzles are excellent for testing an individual's visual acuity. These mind-bending images challenge our perception and ...

How optical illusions work has been long-debated among scientists and philosophers, who wonder whether these illusions stem from neural processing in the eye or involve higher-level cognitive ...