Columbia subject headings:
Harvard subject headings:
Della Porta, Giacomo, 1532-1602.
Fontana di Piazza Colonna (Rome, Italy)
Fountains--Italy--Rome--Conservation and restoration.
Piazza Colonna (Rome, Italy)
Rome (Italy)--Buildings, structures, etc.
Princeton subject headings:
Fontana di Piazza Colonna (Rome, Italy)--Conservation and restoration.
Fountains--Italy--Rome--Conservation and restoration.
Piazza Colonna (Rome, Italy)
Plazas--Italy--Rome.