Columbia subject headings:
Italy--Antiquities.
Memorials--Italy--Rome.
Memorials--Italy.
Rome (Italy)--Antiquities.
Triumphal arches--Italy--Rome.
Triumphal arches--Italy.
Harvard subject headings:
Italy--Antiquities.
Memorials--Italy--Rome.
Memorials--Italy.
Rome (Italy)--Antiquities.
Rome--Antiquities.
Triumphal arches--Italy--Rome.
Triumphal arches--Italy.
Princeton subject headings:
Rome (Italy)--Buildings, structures, etc.
Triumphal arches--Italy--Rome.