Columbia subject headings:
Harvard subject headings:
Baghdad (Iraq)--Description and travel.
Baghdad (Iraq)--History.
Cairo (Egypt)--Description and travel.
Cairo (Egypt)--History.
Damascus (Syria)--Description and travel.
Damascus (Syria)--History.
Islamic Empire--History.
Istanbul (Turkey)--Description and travel.
Istanbul (Turkey)--History.
Medina (Saudi Arabia)--Description and travel.
Medina (Saudi Arabia)--History.
Princeton subject headings:
Islamic civilization.
Middle East--Description and travel.