Columbia subject headings:
Harvard subject headings:
Bunkers (Fortification)--Europe.
Concrete construction.
Holocaust memorials--Germany
Military architecture--Europe.
War memorials--Germany
World War, 1939-1945--Monuments--Germany.
Princeton subject headings:
Bunkers (Fortification)
Holocaust memorials--Germany.
War memorials--Germany.
World War, 1939-1945--Monuments--Germany.