What is an Optical Illusion? An optical illusion is a visual phenomenon where the brain misinterprets what the eyes see.

Think you have great attention to detail? Put your skills to the test by finding the hidden cat in this Christmas tree–themed ...

If you believe you've got top-notch visual processing skills, then take this optical illusion challenge to flex your mental ...

The Escher Loop optical illusion creates a staircase that appears endlessly climbable yet never reaches a higher point. Using impossible geometry and 3D depth tricks, the mind is fooled into ...

A viral optical illusion featuring overlapping leaves hides the number “47,” which most people miss at first glance. The ...

Every illusion has a backstage crew. New research shows the brain’s own “puppet strings”—special neurons that quietly tug our perception—help us see edges and shapes that don’t actually exist. When ...

Get ready for the Optical Illusion 7, a captivating visual puzzle that challenges your perception! Buried within a sea of ...