Columbia subject headings:
Architecture--Germany--History--19th century.
Architecture--Germany--History--20th century.
Architecture--Germany.
Harvard subject headings:
Architecture, Modern--19th century--Germany.
Architecture, Modern--20th century--Germany.
Architecture--Germany
Architecture--Germany--History--19th century
Architecture--Germany--History--20th century
Princeton subject headings:
Architecture, Modern--19th century--Germany.
Architecture, Modern--20th century--Germany.
Architecture--Germany.