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Knowledge

Facts, science and history of optical illusions.
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Billie Eilish drawn in 3D by Stephan Pabst

Anamorphic optical illusions

Expanding Black Hole Illusion

Mind-blowing facts about optical illusions

sorrowful rock face pareidolia

How do optical illusions work?

The Invasion

Street in Macau

Source/credit: Paul Tsui and National Geographic

This picture was entered into National Geographic travel photo competition by Paul Tsui. It depicts a real scene of Macau, with the Grand Lisboa Hotel looming in the background. 

More optical illusions:

Door handle
Angel
Dog Log
How many pipes?
Dead Man's Fingers
A Little Army
Cat Accident
Sun Dogs
  • Pareidolia
  • Physical illusions
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Zombie Attack

Zombies

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Cat a log

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