Columbia subject headings:
Color in architecture--Italy--Rome.
Columns--Italy--Rome--History.
Monuments--Italy--Rome--History.
Polychromy--Italy--Rome.
Rome (Italy)--Antiquities, Roman.
Trajan's Column (Rome, Italy)
Harvard subject headings:
Color in architecture--Italy--Rome.
Columns--Italy--Rome--History.
Monuments--Italy--Rome--History.
Polychromy--Italy--Rome.
Rome (Italy)--Antiquities, Roman.
Trajan's Column (Rome, Italy)
Princeton subject headings:
Color in architecture--Italy--Rome.
Columns--Italy--Rome--History.
Monuments--Italy--Rome--History.
Polychromy--Italy--Rome.
Rome (Italy)--Antiquities, Roman.
Trajan's Column (Rome, Italy)