Columbia subject headings:
Palestine--Antiquities.
Saudi Arabia--Antiquities.
Syria--Antiquities.
Harvard subject headings:
Architecture, Ancient--Palestine--Pictorial works.
Architecture, Ancient--Saudi Arabia--Pictorial works.
Architecture, Ancient--Syria--Pictorial works.
Palestine--Antiquities--Pictorial works.
Saudi Arabia--Antiquities--Pictorial works.
Syria--Antiquities--Pictorial works.
Wiegand, Theodor, 1864-1936.--Photograph collections.
Princeton subject headings:
Architecture, Ancient--Arabian Peninsula.
Architecture, Ancient--Palestine.
Architecture, Ancient--Syria.
Palestine--Antiquities.
Syria--Antiquities.