An optical illusion is a visual phenomenon where our eyes perceive something differently from reality, tricking the brain into misinterpreting what it sees. These illusions occur because the brain ...

A perfectly camouflaged frog has left Reddit users puzzled as they struggle to spot it hiding halfway down a tree.

An optical illusion shared on Reddit challenged viewers as a caterpillar hidden within a tree bark tested their eyes and ...

This optical illusion challenges your brain and observation skills by asking you to spot a single odd tree among eight nearly ...

If you saw a tree or a lion's face in this optical illusion, it could reveal a lot about your personality - especially when ...

A cat is hiding somewhere in this new viral optical illusion challenge on Reddit. Players get only 10 seconds to identify the ...

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

If there's one thing the internet loves, it's a good optical illusion. The most recent brain-boggling viral hit is this ...

Challenge your IQ with this Colourful Optical Illusion Hidden-Object Puzzle. Spot the hidden number zero in seconds and test ...

Challenge your observation! Spot another car hidden in this Miniature Model Optical Illusion Photo. Only 1% succeed—can you?

For the first time, physicists have simulated what objects moving near the speed of light would look like — an optical ...