Columbia subject headings:
Architecture, Roman--Conservation and restoration--Portugal.
Architecture, Roman--Conservation and restoration--Spain.
Portugal--Antiquities, Roman.
Portugal--Antiquities--Collection and preservation.
Spain--Antiquities, Roman.
Spain--Antiquities--Collection and preservation.
Theaters--Portugal.
Theaters--Spain.
Harvard subject headings:
Antiquities--Collection and preservation
Architecture, Roman--Conservation and restoration--Portugal.
Architecture, Roman--Conservation and restoration--Spain.
Cultural property--Protection--Portugal--History.
Cultural property--Protection--Spain--History.
Theaters--Conservation and restoration--Portugal.
Theaters--Conservation and restoration--Spain.
Princeton subject headings:
Antiquities--Collection and preservation.
Architecture, Roman--Conservation and restoration--Portugal.
Architecture, Roman--Conservation and restoration--Spain.
Cultural property--Protection--Portugal--History.
Cultural property--Protection--Spain--History.