| Akiyoshi's illusion pages: Many works of Akiyoshi Kitaoka. Designs around standard illusions crafted to maximise the illusory effect. |
| All In Fun Magic: Over 50 optical illusions and ambiguous drawings. |
| Amazing Eyetricks: Gallery of pictures that will trick your eyes. |
| Amos Storkey - Visual Illusion of the Month: Collection of illusions and images chosen for novelty and distinction from the usual set found in most collections. |
| Cool Optical Illusions: A growing collection of optical illusions and eye tricks, including original illusion pictures and a collection of optical illusion desktop wallpaper. |
| Cut the knot: Visual Illusions: 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. |
| Eluzions' Optical Illusions: Contains many optical illusions illustrating a wide range of visual anomalies and surprising optical effects. A free screensaver, posters, and educational explanations are also provided. |
| Eye Magic: Optical Illusions: Offers a number of optical illusions for viewing, as well as explanations on how they work. |
| Eyetricks.com: Optical illusions, 3D stereograms and anaglyphs, fractals and brain teasers |
| Free Optical Illusions Website: A selection of optical illusions including an optical illusion quiz. |
| IllusionWorks: A multimedia museum of optical and sensory illusions, with online demonstrations and explanations. |
| Just Optical Illusions: Focus on geometric optical illusions by Gianni A. Sarcone and Marie J. Waeber |
| Mchael Bach: Optical Illusions & Visual Phenomena: The stress here is on relative novelty and interactivity, in combination with a scientific background. Regularly updated. |
| Mindfake.com: Site contains a collection of optical illusions, online games, and other fun things. |
| NBCreations illusions: Illusions by Brincat Norbert for viewing and downloading. |
| Optical illusion: A large collection of optical illusions. |
| Optical Illusion Archive: A collection of optical illusion images, 3D street art, and flash demonstrations. |
| Optical Illusionist: Optical illusions, eye tricks, mind teasers and other puzzles. |
| Optical Illusions: Amazing Pictures and Effects |
| Optical Illusions Etc: A collection of various forms of optical illusions with explanations, including illusions conveyed through fractals, architecture, art, advertising and real life encounters. |
| Optical Illusions for Kids: Offers a collection of illusions, brain teasers, and puzzles for children. |
| Optical Illusions?: Comments on the terms 'Optical Illusion' and 'Visual Illusion'. |
| Optical Magic Optical Illusions: A selection of common images. |
| Optillusions: A collection of riddles and optical illusions of many different forms with thumbnail browsing. |
| Planet Perplex: Selection of optical illusions, hidden images, impossible objects and upside down images. |
| Skytopia - Dynamic Optical Illusions: A selection of old, new and original optical illusions. Many pictures are enhanced via the use of 3D and animation. |
| Subliminal Messages: Impossible figures, optical illusions, multimedia and 3D puzzles. |
| The McCulloch Effect - An On-line Science Exhibit: |
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