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Knowledge

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

Forced Perspective

The Dress blue black white gold

Color Constancy Illusions

Squirrel Stereogram

Stereograms

Cracked Wall

cracked wall caused by snake

Source: pigtails_and_pain

This cracked wall is not really caving in.

If you look closely you can see it is a snake in the brick joints.

More optical illusions:

Shark Attack
Screw hole
Giant in the Forest
Ghost Boat
Floating either way
Rock Climbing
Canoe in the Winter
Flying F1 Car
  • Pareidolia
  • Physical illusions
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clown snake optical illusion pareidolia

Clown

Snakes

coiled snake mushroom

Coiled Snake

Snakes