Columbia subject headings:
Architecture, Byzantine--Turkey--Istanbul.
Architecture--Turkey--Istanbul.
Islamic architecture--Turkey--Istanbul.
Istanbul (Turkey)--Antiquities.
Harvard subject headings:
Architecture, Byzantine--Turkey--Istanbul
Architecture--Turkey--Istanbul
Islamic architecture--Turkey--Istanbul.
Istanbul (Turkey)--Antiquities.
Princeton subject headings:
Architecture, Byzantine--Turkey--Istanbul.
Architecture--Turkey--Istanbul.
Islamic architecture--Turkey--Istanbul.
Istanbul (Turkey)--Antiquities.