Columbia subject headings:
Harvard subject headings:
Land use, Urban--Italy--Rome.
Rome (Italy)--Description and travel.
Princeton subject headings:
Architecture, Domestic--Italy--Rome--History.
Cities and towns, Medieval--Italy--Rome.
City planning--Italy--Rome--History.
Dwellings--Italy--Rome--History.
Public spaces--Italy--Rome--History.
Rome (Italy)--History--476-1420.