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Knowledge Cats Dirty Minds
Hidden objects Clouds Camouflage and Mimicry

Knowledge

Facts, science and history of optical illusions.
See all the articles or scroll down to see what you came for.

Expanding Black Hole Illusion

Mind-blowing facts about optical illusions

sorrowful rock face pareidolia

How do optical illusions work?

How to create optical illusion photos (for social media)

Illuminati

Illuminati eye in the ceiling

Source/credit: Rushmerphotography

The shadow of the lampshade and lamp.

More optical illusions:

A sorrowful rock
A Lego bed
Ominous bird
Big bottoms
Fair Game
Self-assembly
Portal
Giant Broccoli
  • Pareidolia
  • Physical illusions
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Grate view of Central Park

Grate View of Central Park

Buildings

Ghost boat

Ghost Boat

Boats