Akiyoshi's illusion pages -- Akiyoshi Kitaoka

coolopticalillusions.com

Dynamic optical illusions -- Skytopia

Escher, M. C.

• Doug Dunham -- UMD
• Escher Biography -- University of St Andrews, Scotland
• Hop's Escher Tessellation Tiles -- David Hollister
• M.C. Escher -- Wikipedia
• Escher Web Sketch -- Wes Hardaker and Gervais Chapuis
• Mathematical Art of MC Escher -- Platonic Realms, Math Academy Online
• The Official MC Escher Website -- M.C. Escher Foundation
• The Oldest Escher Collection on the Web
• World of Escher

The Exploratorium's Online Exhibits

Fun Stuff -- Fred Montney

Illusion Tour -- Sandlot Science

Illusion Works

Illusions -- Psychological  A.R.T.S

Magic Eye ©

NIEHS Kids Page -- Optical Illusions -- National Institute of Environmental Health Sciences

Optical Illusions -- Department of Ophthalmology and Visual Science at the University of Illinois

Optical Illusions -- toruinfo.com

Optical Illusions -- colorcube.com

Optical Illusions -- Eluzions

Optical Illusions and Visual Phenomena -- Michael Bach

optical illusion, fun, free 3d optical illusions -- indianchild.com