Columbia subject headings:
Architecture--Italy--Lazio--Pictorial works.
Lazio (Italy)--Description and travel.
Lazio (Italy)--History.
Harvard subject headings:
Architecture--Italy--Lazio.
Lazio (Italy)--Description and travel.
Lazio (Italy)--History.
Princeton subject headings:
Architecture--Italy--Lazio.
Lazio (Italy)--Description and travel.