Exploring sensory illusions, the Museum of Perception features a small changing exhibition of art works that have a close (or sometimes distant) relationship to perception, as well as gadgets that help you explore illusion for yourself. The samadhi, or meditative bath, is a therapeutic bath that deprives the body of all sensory input (book at least a week ahead; 16-year-olds and over only). Ask for the English information sheet.
Museum der Wahrnehmung
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