The San Francisco Arts Commission sponsors the Art on Market Street Program, which has local artists put up a series of works on bus shelters on Market Street. Iconic City Hall is a series by Kelli Inouye which depicts movies that have used San Francisco's beautiful City Hall.
Don Siegel directed Clint Eastwood in five movies. The most famous is probably Dirty Harry from 1971. I didn't like the politics, but I admired Eastwood's performance and the San Francisco settings, which included City Hall.
I read the Mad Magazine version, "Dirty Larry," before I saw the movie.