Columbia subject headings:
Harvard subject headings:
Berlin (Germany)--Antiquities.
Berlin (Germany)--Buildings, structures, etc.
Berlin (Germany)--History--1945-1990
Cold War
Electronic intelligence--Germany--Berlin--History--20th century.
Espionage, American--Germany--Berlin--History--20th century.
Espionage, British--Germany--Berlin--History--20th century.
Military archaeology--Germany--Berlin.
Radomes
Teufelsberg (Berlin, Germany)
Princeton subject headings:
Berlin (Germany)--Antiquities.
Berlin (Germany)--Buildings, structures, etc.
Berlin (Germany)--History--1945-1990.
Cold War.
Electronic intelligence--Germany--Berlin--History--20th century.
Espionage, American--Germany--Berlin--History--20th century.
Espionage, British--Germany--Berlin--History--20th century.
Military archaeology--Germany--Berlin.
Radomes.
Teufelsberg (Berlin, Germany)