Columbia subject headings:
Harvard subject headings:
Columns--Germany--Mainz (Rhineland-Palatinate)
Mainz (Rhineland-Palatinate, Germany)--Antiquities, Roman.
Sculpture, Roman--Germany--Mainz (Rhineland-Palatinate)
Princeton subject headings:
Columns--Germany (West)--Mainz (Rhineland - Palatinate).
Mainz (Rhineland-Palatinate, Germany)--Antiquities, Roman.
Romans--Germany, West--Mainz (Rhineland - Palatinate).