There are three main types of optical illusion: literal, cognitive, and physiological. Literal illusions are the result of combining smaller images to create one larger image. These are often created ...

Only 1 of 10 people can find the odd word in 12 seconds What is the optical illusion all about: For 15 seconds, viewers watch a series of black and wh ...

An optical illusion is a visual phenomenon where our perception of an image differs from objective reality. This image is ...

Optical illusions test the limits of human vision by deceiving our eyes and brain. A black-and-white spiral pattern hides a ...

A viral number illusion challenges viewers to spot the odd cell in a grid of 349s - only one shows 379, and it is harder to find than you think.

An optical illusion is a visual phenomenon where our perception of thinking about an image differs from objective reality.