Columbia subject headings:
Architecture, Medieval--History.
Cathedrals--History--To 1500.
Harvard subject headings:
Architecture, Gothic--History.
Architecture--Historiography
Art--History
Cathedrals in art.
Cathedrals--History.
Church architecture--History.
Culture--History.
Princeton subject headings:
Architecture, Medieval--History.
Cathedrals--History--To 1500.