Columbia subject headings:
Cologne (Germany)--Antiquities, Roman.
Mural painting and decoration, Ancient--Germany--Cologne.
Mural painting and decoration, Roman--Germany--Cologne.
Harvard subject headings:
Cologne (Germany)--Antiquities, Roman.
Germany--Antiquities.
Mural painting and decoration, Ancient--Germany--Cologne.
Mural painting and decoration, Roman--Germany--Cologne.
Romans--Germany--Cologne.
Princeton subject headings:
Cologne (Germany)--Antiquities, Roman.
Mural painting and decoration, Roman--Germany--Cologne.