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Knowledge Cats Dirty Minds
Birds Shadows Refraction

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

How to create optical illusion photos (for social media)

Rorscharch inkblot

What Optical Illusions Reveal about You

Paperthin Building

Paperthin building

Source/credit: Jakeyrobe

The base of The Gateway in Singapore is a triangle pointed like this l>.

More optical illusions:

Smile!
Baby Ostrich
Monkey Selfie
Water drop
Dog Log
World's Worst Carpet
Gravel flower bed
Sunken Yacht
  • Pareidolia
  • Physical illusions
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Giant cat on a recliner

Giant Cat

Cats

A giant on the beach

A Giant on the Beach

People