Columbia subject headings:
Architecture--Conservation and restoration--Germany--Berlin--History--20th century.
Architecture--Conservation and restoration--Germany--Berlin--History--21st century.
Berlin (Germany)--Buildings, structures, etc.
Historic buildings--Conservation and restoration--Germany--Berlin.
Monuments--Conservation and restoration--Germany--Berlin.
Harvard subject headings:
Architecture--Conservation and restoration--Germany--Berlin--History.
Cities and towns--Germany--Berlin--Growth--History.
Historic buildings--Conservation and restoration--Germany--Berlin--History.
Historic preservation--Germany--Berlin.
Monuments--Conservation and restoration--Germany--Berlin--History.
Princeton subject headings:
Architecture--Conservation and restoration--Germany--Berlin--History.
Cities and towns--Germany--Berlin--Growth--History.
Historic buildings--Conservation and restoration--Germany--Berlin--History.
Historic preservation--Germany--Berlin.
Monuments--Conservation and restoration--Germany--Berlin--History.