Treasure Island is an artificial manmade island in the San Francisco Bay. The island was built by the government using imported fill and was to be used as an airport for Pan American World Airways. During the second world war the island became part of the naval base and up until 1996 was owned and operated by the United States Navy. Treasure Island was decommissioned in 1996 and given free of charge to the city of San Francisco. The valuation of the island is not determined as several controversial figures have been suggested over the years.
Currently the island is home to a total of 1,200 residents. The island is part of a municipal bus route that takes residents on and off the island. Treasure Island is popular with tourists and locals as a place for recreation. There is a raised walkway that goes almost entirely around the island which attracts many people who enjoy sea lion watching, running and biking.
Treasure Island has been used in several television shows and motion pictures. Some of the movies and television shows include Indiana Jones, Flubber, Patch Adams, Copycat, The Parent Trap, Bicentennial Man, The Matrix, and What Dreams May Come. The island currently serves as the location for the Discovery Channel's Prototype This!