Columbia subject headings:
Architecture--California--San Francisco--Pictorial works.
Historic buildings--California--San Francisco--Pictorial works.
Parks--California--San Francisco--Pictorial works.
San Francisco (Calif.)--Description and travel.
San Francisco (Calif.)--Pictorial works.
Harvard subject headings:
San Francisco (Calif.)--History
San Francisco (Calif.)--Pictorial works
Princeton subject headings: