These illustrations defy the rules of space and trick the eye into seeing two different visions.
If you like these optical illusions, you'll enjoy these Mind-Bending Optical Illusion Books
Vibrating Porthole
From Dave Fisher, About.com
Optical Illusions and Visual Puzzles
Watizzits? - Views-to-ConfuseProblem Postage - Spot the Difference PuzzlesAmbigrams - Topsy-Turvy Matchbox Art
More Optical Illusions and Visual Puzzles
Optical Illusions - The Missing PrincessSpot the Difference PuzzlesOptical Illusions - Checker Shadow Illusion
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