Things to do in San Francisco - Part 6 - Exploratorium
says, "Developed by physicist Frank Oppenheimer and opened in 1969, this innovative, interactive museum behind the Palace of Fine Arts is dedicated to art, science and human perception. The hands-on displays unveil the mysteries of science and language (trace hundreds of languages through family trees!). The exhibits present theories simply and succinctly. For a different kind of hands-on experience, check out the tactile dome, a labyrinth of different textures that explorers negotiate in the dark. Seminars on quirky subjects are offered on weekends."
- Mick Orton