Columbia subject headings:
Architecture--Turkey--Istanbul.
Art--Turkey--Istanbul.
Istanbul (Turkey)--Buildings, structures, etc.
Istanbul (Turkey)--History.
Harvard subject headings:
Architecture, Byzantine
Architecture, Byzantine--Turkey--Istanbul
Architecture, Ottoman--Turkey--Istanbul
Art, Byzantine
Art, Byzantine--Turkey--Istanbul.
Art, Ottoman--Turkey--Istanbul.
Art, Turkish--Turkey--Istanbul--History.
Art, Turkish--Turkey--Istanbul.
Byzantine Empire--Civilization.
Istanbul (Turkey)--Antiquities, Byzantine.
Istanbul (Turkey)--Antiquities.
Istanbul (Turkey)--Buildings, structures, etc.
Istanbul (Turkey)--Buildings, structures, etc.--History.
Istanbul (Turkey)--Civilization.
Istanbul (Turkey)--In art.
Princeton subject headings:
Architecture, Byzantine.
Art, Byzantine--Turkey--Istanbul.
Art, Byzantine.
Art, Ottoman--Turkey--Istanbul.
Art, Turkish--Turkey--Istanbul--History.
Byzantine Empire--Civilization.
Istanbul (Turkey)--Antiquities, Byzantine.
Istanbul (Turkey)--Antiquities.
Istanbul (Turkey)--Buildings, structures, etc.--History.
Istanbul (Turkey)--In art.