Columbia subject headings:
Harvard subject headings:
Architecture--Germany--Oldenburg (State)
Neoclassicism (Architecture)--Germany--Oldenburg (Grand Duchy)
Princeton subject headings:
Architecture--Germany--Birkenfeld (Landkreis)--History.
Architecture--Germany--Lübeck--History.
Architecture--Germany--Oldenburg (Grand Duchy)--History.
Classicism in architecture--Germany--History--19th century.
Neoclassicism (Architecture)--Germany--History--19th century.