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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

Forced perspective image Pisa tower

Forced Perspective

Is this a bird or a rabbit?

Ambiguous illusions

Oh deer! It’s a cat

This cat optical illusion looks like a weird deer on a sofa

Source/credit: Eli Keren

Eli Keren’s cute cat made many people laugh creating this optical illusion with a pillow featuring a deer head.

 

More optical illusions:

Snake cat
Missing Chair Leg
Sexy Birch
Impaled windshield
Lake View Garden
Square Fire Hydrant
Ent walking
110 pound squirrel
  • Pareidolia
  • Physical illusions
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Guarana grows in the Amazaon and is best known for the seeds of the fruits, looking like eyes.

Eyes of the Amazon

Nature

The handles of a box with a bin in it creates a sexy optical illusion. It looks like this lady got very excited about bins.

Excited about bins

a dirty mind