Columbia subject headings:
Buildings--Iraq.
Iraq--Antiquities.
Islamic Empire--History--622-661.
Islamic Empire--History--750-1258.
Islamic architecture--Iraq.
Palaces--Iraq.
Harvard subject headings:
Buildings--Iraq.
Iraq--Antiquities.
Islamic Empire--History--622-661.
Islamic Empire--History--750-1258.
Islamic architecture--Iraq.
Palaces--Iraq
Princeton subject headings:
Buildings--Iraq.
Iraq--Antiquities.
Islamic Empire--History--622-661.
Islamic Empire--History--750-1258.
Islamic architecture--Iraq.
Palaces--Iraq.