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Knowledge

Facts, science and history of optical illusions.
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Rainbows are illusions

Types of Optical Illusions

Prehistoric ambiguous illusion

The history of optical illusions in art

The Dress blue black white gold

Color Constancy Illusions

Potemkin Stairs

Potemkin Stairs makes use of forced perspective

Source/credit: Oleksandr Malyon via Wikipedia

These Potemkin Stairs in Odessa (Ukraine) connect the city to the harbor.

The lower step are much wider than the ones on the top, making it appear much longer when looking from the bottom. Forced perspective is a common technique in architecture.

 

 

More optical illusions:

Cargo in the sky
The Grinch
Lake View Garden
Eye of a tree
Dogs sharing a mouth
Pixeled sky
Misbehaving Shadow
Reflected rice fields
  • Pareidolia
  • Physical illusions
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This deformed building is a temporary art installation to hide renovation work

Deformed Building

Buildings

The underwater waterfall in Mauritius is a landmark that is an optical illusion

Underwater Waterfall

Landmarks