Columbia subject headings:
Architecture, Byzantine--History.
Art, Byzantine--History.
Istanbul (Turkey)--Antiquities, Byzantine.
Istanbul (Turkey)--History--To 1453.
Harvard subject headings:
Architecture, Byzantine--History.
Art, Byzantine--History.
City planning--Turkey--Istanbul--History.
Istanbul (Turkey)--Antiquities, Byzantine.
Istanbul (Turkey)--History--To 1453.
Princeton subject headings:
Architecture, Byzantine--History.
Art, Byzantine--History.
Istanbul (Turkey)--Antiquities, Byzantine.
Istanbul (Turkey)--History--To 1453.