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Eyecon – Optical Illusions

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Knowledge Cats Dirty Minds
Geometry Ambiguous Boats

Knowledge

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

sorrowful rock face pareidolia

How do optical illusions work?

Squirrel Stereogram

Stereograms

Bezold effect fabric

Bezold Effect

Swamp monster

Penrhyn Castle in Wales looks like a swamp monster

Credit: Alan Moore

This is inside Penrhyn Castle in Wales. The windows in the dome look like the eyes of a swamp monster, in a classic case of pareidolia.

More optical illusions:

Absolutely impossible
Deflated dog
Trees wearing a tutu
High-rise buidings
Geometric Shapes
Erased Street Art
Scale Model of a Courtyard
Schrödinger's Scat
  • Pareidolia
  • Physical illusions
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Strained Expression

Objects

This photo was taken in Kazakhstan and quickly named 'Eye of God' by people online. Obviously, this is just a case of pareidolia.

Eye of God

Clouds