Mission High School is a public high school in the San Francisco Unified School District (SFUSD) San Francisco, California. Serving grades 9-12, Mission is the oldest high school on its original site in San Francisco; it has been on 18th Street, between Dolores and Church, since 1896. The original campus burned in 1922, and the replacement was completed in two stages, the west wing in 1925 and the main building was dedicated by San Francisco mayor James Rolph on June 12, 1927. Originally, girls and boys had separate courtyards. The boys' is overlooked by the "baby tower," about 100 feet (30 m) high, and the girls' (right) topped by a 127-foot (39 m)-high baroque dome. Mission Creek runs beneath the school.