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Knowledge

Facts, science and history of optical illusions.
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Prehistoric ambiguous illusion

The history of optical illusions in art

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:

Next to the boat
Floating tracks
Wind turbines
White Egret
A sorrowful rock
Mind-boggling Floor
Eye of God
Dog Log
  • Pareidolia
  • Physical illusions
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grumpy tree illusion pareidolia

Grumpy tree

Trees

sorrowful rock face pareidolia

A sorrowful rock

Nature