San Francisco’s tallest icon is this 853 foot, white and winged, four-sided building at the end of the financial district: Transamerica Pyramid. On the right is Columbus Tower. Also known as Sentinel Building, this copper-green, flatiron building was built in 1907. Its tenant is American Zoetrope, a film studio founded by George Lucas and Francis Ford Coppola. Since 2000, this location has produced some of the highest awarded and biggest box office films.