Columbia subject headings:
Architecture--Germany--Berlin--History--20th century.
Berlin (Germany)--Buildings, structures, etc.
City planning--Germany--Berlin--History.
Communism and architecture--Germany--Berlin.
Public architecture--Germany--Berlin.
Harvard subject headings:
Architecture--Germany--Berlin--20th century.
Berlin (Germany)--Buildings, structures, etc.
City planning--Germany--Berlin--History
Communism and architecture--Germany--Berlin.
Public architecture--Germany--Berlin.
Princeton subject headings: