Columbia subject headings:
Danube River Valley--Antiquities, Roman.
Limes (Roman boundary)--Danube River Valley.
Limes (Roman boundary)--Rhine River Valley.
Rhine River Valley--Antiquities, Roman.
Romans--Danube River Valley.
Romans--Rhine River Valley.
Sculpture, Roman.
Harvard subject headings:
Danube River Valley--Antiquities, Roman.
Limes (Roman boundary)--Danube River Valley.
Limes (Roman boundary)--Rhine River Valley.
Rhine River Valley--Antiquities, Roman
Romans--Danube River Valley.
Romans--Rhine River Valley
Sculpture, Roman--Danube River Valley.
Sculpture, Roman--Rhine River Valley.
Princeton subject headings:
Fortification, Roman.
Rome--Army.
Sculpture, Roman.