Columbia subject headings:
Architecture, Roman.
Building materials--Rome.
Building--Rome--History.
Excavations (Archaeology)--Rome.
Rome--Antiquities.
Harvard subject headings:
Architecture, Roman.
Building materials--Rome.
Building--Rome--History.
Excavations (Archaeology)--Rome.
Rome--Antiquities.
Princeton subject headings:
Architecture, Roman.
Building materials--Rome.
Building--Rome--History.
Excavations (Archaeology)--Rome.
Rome--Antiquities.