Planet Perplex
 

http://www.planetperplex.com/en/index.html

This hobbyist's website is dedicated to optical illusions, with an online gallery filled to the brim with perplexing, amazing, and interesting images.

The site is a veritable fun house, with loads of puzzles, wordplay, upside
down images, "impossible images", and optical illusions of all shapes and
sizes. Discover that there truly is more than meets the eye as you learn
about anamorphosis, surrealism, trompe l'oeil, and other elements that make
up the world of illusions.

cool pepper, thanks

very cool:thumbsup: