JW Marriott Hotel San Francisco San Francisco, California Guest rooms: 338 Meeting space: 17,500 s.f. (1,625 sm) Developed to bring Asian-style service to the United States market, this luxurious hotel is located in the historic Union Square District. The 22-story building offers well-appointed guest rooms and deluxe amenities that serve the needs of tourists and business travelers alike. A fine dining establishment is located on the premises, along with world-class conference facilities.