If these copper-clad walls could talk, they'd name-drop shamelessly. The tower's original occupant was political boss Abe Ruef, ousted in 1907 and sent to San Quentin for bribing city supervisors. Grammy-winning folk group the Kingston Trio bought the tower in the 1960s, and the Grateful Dead recorded in the basement. Since 1972 it's been owned by Godfather director Francis Ford Coppola, who shares offices with Joy Luck Club director Wayne Wang and Oscar-winning actor-director Sean Penn. Coppola runs ground-floor Cafe Zoetrope.