Columbia subject headings:
Architecture--Italy--Rome.
City planning--Italy--Rome--History.
Harvard subject headings:
Architecture--Italy--Rome
Architecture--Italy--Rome--History.
City planning--Italy--Rome--History
City planning--Italy--Rome--History--19th century.
City planning--Italy--Rome--History--20th century.
Rome (Italy)--Buildings, structures, etc.
Princeton subject headings:
Architecture--Italy--Rome.
City planning--Italy--Rome--History.