Columbia subject headings:
Harvard subject headings:
Aqueducts--Italy--Rome.
Fountains--Italy--Rome
Hydraulic structures--Italy--Rome.
Public baths--Italy--Rome.
Rome (Italy)--Antiquities.
Rome (Italy)--Buildings, structures, etc.
Princeton subject headings:
Aquedeucts--Italy--Rome.
Architecture, Roman--Italy--Rome.
Baths, Roman--Italy--Rome.
Fountains--Italy--Rome.
Rome (Italy)--Buildings, structures, etc.
Water-supply--Italy--Rome.