Collection of illusions and images chosen for novelty and distinction from the usual set found in most collections.

Optical illusions, 3D stereograms and anaglyphs, fractals and brain teasers

A multimedia museum of optical and sensory illusions, with online demonstrations and explanations.

Offers a number of optical illusions for viewing, as well as explanations on how they work.

A selection of old, new and original optical illusions. Many pictures are enhanced via the use of 3D and animation.

Offers a collection of illusions, brain teasers, and puzzles for children.

Focus on geometric optical illusions by Gianni A. Sarcone and Marie J. Waeber

Site contains a collection of optical illusions, online games, and other fun things.

A collection of about 20 illusions - all accompanied by Java applets. Interactively changeable attributes help investigate which ones are in fact responsible for tricking the brain.

Many works of Akiyoshi Kitaoka. Designs around standard illusions crafted to maximise the illusory effect.