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Description Presented here is a vast gallery of many different forms of Optical Illusions. Whether these optical illusions are conveyed through fractals, photographs, architecture, art, or old fashioned pen and ink, they are bound to remind you that "seeing is not believing."

Caution!!!! Some of the optical illusions on this blog may cause dizziness or possibly epileptic seizures. The latter happens when the brain can't handle the conflicting information from your two eyes. If you start feeling unwell when using this website, immediately cover one eye with your hand and then leave the page. Do not close your eyes because that can make the attack worse.
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Provided By Sprott's Fractal Gallery


Necker Cube Optical Illusion

First published in 1832 by Swiss crystallographer Louis Albert Necker, The Necker Cube is an ambiguous line drawing.

Is the blue face the front or back face of this cube?

Is the blue dot inside or outside the cube?

Ambiguous Optical Illusion

It is a wire-frame drawing of a cube in isometric perspective. This makes the picture ambiguous; it can be interpreted two different ways. When a person stares at the picture, it will often seem to flip back and forth between the two valid interpretations.


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