Columbia subject headings:
Rome (Italy)--Antiquities.
Trajan's Column (Rome, Italy)
Harvard subject headings:
Monuments--Italy--Rome
Rome (Italy)--Antiquities.
Rome (Italy)--Buildings, structures, etc.
Trajan's Column (Rome, Italy)
Trajan, Emperor of Rome, 53-117.
Princeton subject headings:
Rome (Italy)--Antiquities.
Trajan's Column (Rome, Italy)