Knowledge

Facts, science and history of optical illusions.
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Billie Eilish drawn in 3D by Stephan Pabst

Anamorphic optical illusions

Inferior and Superior Mirages, and Fata Morgana

How to create optical illusion photos (for social media)

Floating tree

Source/credit: Anthonyonio

This floating tree in Springboro, Ohio, is actually curved, and leaning over the road. They’ve cut branches to allow cars through and to clear the power lines, instead of cutting it down altogether.

More optical illusions:

Transparent coffee cup

Big Dog

Dogs

River in the Sky

Clouds