Sutro Project / City Hall
The world's 5th largest dome in the world is a centroid of activity - gay and straight marriages, civil rights and antiwar protests, Gay Pride parade, Lovefest, the occasional Flashdance party, among others.
This 1915 neoclassic is readily accessible by Muni and Bart, and many buses - and visible from many high-elevation points around the city, especially away from downtown.
Address: 1 South Van Ness Ave, SF, CA
Wikipedia: http://en.wikipedia.org/wiki/San_Francisco_City_Hall
