Columbia subject headings:
Harvard subject headings:
Hadrian's Villa (Tivoli, Italy)
Hadrian, Emperor of Rome, 76-138.
Italy--Antiquities, Roman.
Maritime Theater (Hadrian's Villa, Tivoli, Italy)
Tivoli (Italy)--Antiquities, Roman.
Tivoli (Italy)--Buildings, structures, etc.
Princeton subject headings:
Hadrian's Villa (Tivoli, Italy). Teatro marittimo.
Hadrian, Emperor of Rome, 76-138--Homes and haunts--Italy--Tivoli.
Theaters--Italy--Tivoli.
Tivoli (Italy)--Buildings, structures, etc.