Knowledge

Facts, science and history of optical illusions.
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Can animals see optical illusions? Hosico cat shows it with optical illusion rug

Animals and optical illusions

The history of optical illusions in art

Types of Optical Illusions

Separation

Credit: 大野健一

This photo is not a composite, but rather zoomed in until it is hard to recognize what you are seeing. The orange color on the right is a retaining wall.

After the photo won the 39th Asahi Photo Contest in 2023, it went viral online.

More optical illusions:

180 degrees

Cars

Three little pigs

a dirty mind