An optical illusion is a type of puzzle where the viewer perceives the image differently, but the answer is hidden in the ...

A stereogram optical illusion is a fascinating visual puzzle that hides a 3D image within a 2D pattern. At first glance, it appears to be a random collection of repeating designs or colourful dots.

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

Can you solve this seek-and-find brain teaser? A graphic artist, Gergely Dudás of Dresden, Germany, shared an autumn-inspired visual puzzle with Fox News Digital that features three birds hidden among ...