The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
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- Browse (4 members)
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- Category templates (3 members)
- Classic Optical Illusions (0 members)
- Color Illusions (1 member)
- Community (6 members)
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- Illusions Involving Animals (2 members)
- Image wiki templates (9 members)
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- Internet Illusions (0 members)
- Lines (4 members)
- Magic Tricks (52 members)
- Memes (1 member)
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- Mind Tricks (1 member)
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- Optical-Illusions (1 member)
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- People (1 member)
- Perception (7 members)