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Knowledge

Facts, science and history of optical illusions.
See all the articles or scroll down to see what you came for.

Rainbows are illusions

Types of Optical Illusions

Squirrel Stereogram

Stereograms

Is this a bird or a rabbit?

Ambiguous illusions

Upskirt

upskirt photo or pedicure?

Source: Iningnim

This upskirt photo went viral in 2014, because it is actually an innocent photo of someone having a footbath.

More optical illusions:

Dead Man's Fingers
Goblin spy on a plane
Cat portal
Find the black car
A Festival for Ants
Sword-billed Hummingbird
Broken Chair
The eye of the tower
  • Pareidolia
  • Physical illusions
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coiled snake mushroom

Coiled Snake

Snakes

venus flytrap cactus dirty mind

Venus Flytrap

a dirty mind