"No, this is not a cut-and-paste of a real coke bottle in Photoshop. This coke bottle is drawn. In chalk. On pavement. Really incredible, I'm sure you'll agree."
Optical illusions. Hidden and impossible images. Visual puzzles. Feeling smart? Scroll through these drawings and marvel at the conundrums and paradoxes.
Perplexed? Visit: Planet Perplex : Optical Illusion, Hidden, Impossible, Upside Down, Wordplay
