Hidden number and letter optical illusions are some of the most satisfying puzzles because they look unbelievably simple ...

Optical illusions come in all forms, from mind-melting artwork to photography trickery, but there's one style that never fails to perplex the internet – the humble colour illusion. Fooling the brain ...

Optical illusions come in all forms, from mind-bending physiological phenomena to confusing cognitive images, but one variety that doesn't get nearly enough love is the humble ambigram. While these ...

Many viewers struggle with this optical illusion because the design distracts the brain. Look carefully, stay calm, and try ...

At first glance, a uniform array of the number '1' offers little intrigue, but delve deeper and you'll reveal a lone letter ...

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 ...

Optical illusions are not just fun internet games. These visual illusions are a fantastic way to test your eyesight and ...

Optical illusions occur naturally in different habitats and conditions across the world. Cloud formations can sometimes make it seem like there's an ocean or a UFO in the sky. Whether it is salt flats ...

Viewers have been left stumped trying to determine how many shapes are in this photo. This optical illusion creates a series of triangles, squares and lines, but most viewers are shocked to learn that ...