Columbia subject headings:
Harvard subject headings:
Castles--Social aspects--Europe.
Castles--Social aspects--Middle East.
Castles--Social aspects--Palestine.
Space (Architecture)--Social aspects--Palestine.
Princeton subject headings:
Architecture and society--Middle East--History--To 1500.
Architecture, Medieval--Middle East.
Castles--Middle East--History--To 1500.
Space (Architecture)--Middle East--History--To 1500.