Hilton San Francisco Union Square is a skyscraper hotel located several blocks south-west of Union Square in San Francisco California. The 46-storey 493 ft (150 m) Tower I was completed in 1971 with the addition of Tower II at 348 ft (106 m) and 23 floors completed in 1987. The complex is currently the West Coast’s largest hotel with 1908 hotel rooms and is one of the tallest structures representing the Brutalist architecture.
