Columbia subject headings:
Architecture, Ancient--Italy--Rome.
Architecture, Roman--Italy--Rome.
City planning--Italy--Rome--History--To 1500.
Harvard subject headings:
Architecture, Ancient--Italy--Rome.
Architecture, Roman--Italy--Rome.
Historic buildings--Italy--Rome
Rome (Italy)--Antiquities.
Rome (Italy)--Buildings, structures, etc.
Princeton subject headings:
Architecture, Ancient--Italy--Rome.
Architecture, Roman--Italy--Rome.
Historic buildings--Italy--Rome.
Rome (Italy)--Antiquities.
Rome (Italy)--Buildings, structures, etc.