Columbia subject headings:
Art--Italy--Tivoli.
Hadrian's Villa (Tivoli, Italy)
Harvard subject headings:
Art--Italy--Tivoli.
Hadrian's Villa (Tivoli, Italy)
Tivoli (Italy)--Antiquities, Roman.
Tivoli (Italy). Villa Adriana.
Princeton subject headings:
Art--Italy--Tivoli.
Hadrian's Villa (Tivoli, Italy)