Columbia subject headings:
Piazza Navona (Rome, Italy)
Plazas--Italy--Rome.
Public spaces--Italy--Rome.
Urbanization--Italy--Rome--History.
Harvard subject headings:
Piazza Navona (Rome, Italy)
Plazas--Italy--Rome.
Public spaces--Italy--Rome.
Urbanization--Italy--Rome--History.
Princeton subject headings:
City planning--Italy--Rome--History.
Piazza Navona (Rome, Italy)
Plazas--Italy--Rome--History.
Plazas--Italy--Rome.
Public spaces--Italy--Rome.
Rome (Italy)--Buildings, structures, etc.
Stadium of Domitian (Rome, Italy)
Urbanization--Italy--Rome--History.