Columbia subject headings:
Harvard subject headings:
Architecture, Byzantine--Turkey--Istanbul
Church architecture--Expertising--Turkey--Istanbul.
Church of St. Polyeuktos (Istanbul, Turkey)
Excavations (Archaeology)--Turkey--Istanbul.
Istanbul (Turkey)--Antiquities, Byzantine.
Istanbul (Turkey)--Buildings, structures, etc.
Princeton subject headings:
Architecture, Byzantine--Turkey--Istanbul.
Church architecture--Turkey--Istanbul.
Church of St. Polyeuktos (Istanbul, Turkey)
Excavations (Archaeology)--Turkey--Istanbul.
Istanbul (Turkey)--Antiquities.