Online since 1993, the Exploratorium was one of the first science museums to build a site on the World Wide Web. The web site now contains over 18 thousand award-winning Web pages exploring hundreds of different topics. Housed within the walls of San Francisco's Palace of Fine Arts, the Exploratorium is a collage of hundreds of science, art, and human perception exhibits. The Exploratorium is a leader in the movement to promote museums as informal education centers. Here are some Exploratorium images for you to enjoy.