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Knowledge Cats Dirty Minds
Color Constancy Landmarks Depth Reversion

Knowledge

Facts, science and history of optical illusions.
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Forced perspective image Pisa tower

Forced Perspective

Prehistoric ambiguous illusion

The history of optical illusions in art

Billie Eilish drawn in 3D by Stephan Pabst

Anamorphic optical illusions

Lap Tiger

A lap tiger created with forced perspective

Credit: LunarWelshFire

This lap tiger is a result of forced perspective photography. You can create optical illusions like this one by placing the camera close to the subject in the foreground. 

More optical illusions:

A Festival for Ants
Bending the Walls
Mesmerizing eye
Giant Moon
Cat's face
Dog jumping over Manhattan
A Beard Model
Canoe in the Winter
  • Pareidolia
  • Physical illusions
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Alien invasion in Texas

Alien Invasion

UFOs

If you look closely at the headless woman, just above the shoulder, you can see an ear.

Headless Woman

People