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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.

sorrowful rock face pareidolia

How do optical illusions work?

Rainbows are illusions

Types of Optical Illusions

Forced perspective image Pisa tower

Forced Perspective

Seeing Eye Dog

Seeing Eye Dog illusion
Credit: Original_Act_3481

This monstrosity looks like it belongs in outer space, or some cartoon. But as you can see in this photo, is just a dog in dire need of a haircut.

Seeing Eye Dog

More optical illusions:

Impossible woodwork
Bending the Walls
Tokyo View
Canoe in the Winter
Two giants
Flying cat
Dog jumping over Manhattan
Cargo in the sky
  • Pareidolia
  • Physical illusions
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Shoebill, No egrets, Herun

Shoebill?

Birds

impossible woodwork

Impossible woodwork

Objects