Artists
Escher, M. C. X
Magritte Rene X
Exhibits
Puzzling Place - Keswick, UK
Faces
9News report - Photographer stands by his work - WTC X
About the Face on Mars X
Anomalous Images of Mars X
Astronomy Picture of the Day - 6th April 1998 - The face on Mars
Connection - The face on Mars X
Detroit News report - Angel Or Devil? Viewers See Images In Smoke - WTC X
Eyewitness Report - Virgin Mary, Clearwater, Florida X
Eagle Nebula - NASA's Hubble site X
Eagle Nebula - Chris Mastrangelo's Home Page X
Eagle Nebula - Bad Astronomy
Face on Mars
Face on Mars and other Familiar Features
Faces at Alum Cove
Faces in the Rocks - Delaware Water Gap X
Faces in WTC images X
Geirangerfjorden - Michal Kaut's Norwegian Holiday X
Girl in the Mountain - Cerros de Escaz? San Jos? Costa Rica X
Happy Face Crater on the Moon
High brow rock face X
Hooded Man
- Don Baccus Photography X
Indian Heads and other Humanoid Rocks
Indian Heads and other Humanoid Rocks
Man in the Moon and other Weird Things
Mars Face Breaks Under Questioning
Mars Global Surveyor - The face on Mars
Millenium and Apocalypse - The face on Mars X
Moon Hoax by Sir John Herschel
Moon Illusions X
Mother Mary in Web Page X
Mysteries - Faces & Crosses - WTC X
News report - 18th July 2002 - Virgin Mary, Ferraz Vasconcelos, Brazil X
News report - 22nd July 2002 - Virgin Mary, Ferraz Vasconcelos, Brazil X
News report - 23rd July 2002 - Virgin Mary, Ferraz Vasconcelos, Brazil X
NSSDC Photo Gallery - The face on Mars
Old Man - GORP X
Old Man - New Hampshire White Mountain region X
Pacific Crest Trail X
Photo Gallery - Virgin Mary, Clearwater, Florida X
Pointed Nose -
Joe Hoover Photography X
Skeptics Dictionary - Our Lady of Watsonville
Sleepy Head -
Canadian Arctic X
Stonehenge designer? -
BBC article
Stonehenge designer? -
Crystalinks
Stonehenge designer? -
Jedi Girl X
Tampa Bay Skeptics - Virgin Mary, Clearwater, Florida X
Universe in the Classroom - The face on Mars X
Unmasking the Face on Mars X
Urban Legends - The face of the Devil - WTC X
Woman in the Moon X
World Trade Center Smoke Faces X
Zeitun - Mary on TV - Virgin Mary, Zeitun, Egypt X
Optical illusions
Amazing Art X
Art & Illusions - A nice collection of illusions X
Checker Shadow Illusion
Der Neandertaler Regiert - A German language site but some very interesting stuff here
Illusioni Ottiche - An Italian language site but very good X
Impossible World X
Lecture Notes - Southern Arkansas University - Department of Behavioral and Social Sciences X
Lightness Illusions
Nyikos - A Hungarian language site, some good pictures here X
Palmyra X
Perceptual Science Group - MIT
Planet Perplex X
Ryanbut - One of the first optical illusion sites I found on the Internet X
Vision & Art
Web Illusion X
Pschology
Depth Perception in Vision - Clarkson University X
Gender Differences in Illusion Response - It seems your sex determines how to relate to some optical illusions X
Lightness Perception and Lightness Illusions X
Neuroscientists locate area of brain responsible for 3-D vision - Caltech Press Release X
Lecture Notes - Southern Arkansas University - Department of Behavioral and Social Sciences X
Perception - Journal of Perception X
Perceptual Science Group - MIT
Richard L. Gregory
Vision & Art
Web Vision
SIRDS
3D & SIRDS - includes ASCII Stereograms X
Hierarchy of Stereograms X
SIRDS X
SIRTS X
Sunny Spot - SIRDS and SIRTS
Trompe L'oeil
Most of these are commercial artists, but show examples of their excellent work
Eric Cumini X
Ron Francis X
Graphicatta X
Richard Haas
Paul Montgomery X
John Pugh
Janet Shearer X
Mary Sue Weeks X
Paul Wright X
Vision
Age-Appropriate Vision Milestones - Lucile Packard Children?s Hospital, Growth and Development X
Lecture Notes - Southern Arkansas University - Department of Behavioral and Social Sciences X
Mapping Vision - On the Brain, the Harvard Mahoney Neuroscience Institute Letter X
Optometrists Network
Vision - How Stuff Works
Vision Development - Children's Vision Information Network X
WebVision