Columbia subject headings:
Architecture--Italy--Rome.
Art, Italian--Italy--Rome.
Caelian Hill (Italy)--Antiquities.
Caelian Hill (Italy)--History.
Church buildings--Italy--Rome.
Excavations (Archaeology)--Italy--Rome.
Rome (Italy)--Antiquities.
Harvard subject headings:
Architecture--Italy--Rome
Art, Italian--Italy--Rome
Caelian Hill (Italy)
Caelian Hill (Italy)--Antiquities.
Caelian Hill (Italy)--History.
Church buildings--Italy--Rome.
Excavations (Archaeology)--Italy--Rome
Rome (Italy)--Antiquities.
Rome (Italy)--Buildings, structures, etc.
Rome (Italy)--History.
Princeton subject headings: