Columbia subject headings:
Architecture--Conservation and restoration--Italy.
Castro (Italy)--Antiquities.
Excavations (Archaeology)--Italy--Castro.
Harvard subject headings:
Architecture--Conservation and restoration--Italy
Castro (Italy)--Antiquities.
Excavations (Archaeology)--Italy--Castro.
Princeton subject headings:
Architecture, Renaissance--Italy--Castro (Viterbo).
Castro (Viterbo, Italy)--Antiquities.
Excavations (Archaeology)--Italy--Castro (Viterbo).
Extinct cities--Italy--Viterbo (Province).
Mints--Conservation and restoration--Italy--Castro (Viterbo).