Columbia subject headings:
Harvard subject headings:
Monuments--Italy--Rome--Exhibitions.
Rome (Italy)--Antiquities--Exhibitions.
Rome (Italy)--Buildings, structures, etc.--Exhibitions.
Trajan's Column (Rome, Italy)--Exhibitions.
Princeton subject headings:
Monuments--Italy--Rome--Exhibitions.
Rome (Italy)--Antiquities--Exhibitions.
Rome (Italy)--Buildings, structures, etc.--Exhibitions.
Trajan's Column (Rome, Italy)--Exhibitions.