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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

Locomotives in their natural habitat

Pareidolia (Seeing faces)

Is this a bird or a rabbit?

Ambiguous illusions

Mysterious tree

mysterious tree pareidolia

Source/credit: Bruno Teste

In another classic case of pareidolia, this mysterious tree seems to possess some secret knowledge. 

 

More optical illusions:

Door handle
Skull
Giant in the Forest
Find the black car
A Flying Island
Mesmerizing eye
Giant Party in the Skyline
Big women
  • Pareidolia
  • Physical illusions
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grumpy tree illusion pareidolia

Grumpy tree

Trees

sorrowful rock face pareidolia

A sorrowful rock

Nature