Columbia subject headings:
Architecture--Germany--Berlin--History--21st century.
Berlin (Germany)--Buildings, structures, etc.
Mitte (Berlin, Germany)--Buildings, structures, etc.
Harvard subject headings:
Architecture--Germany--Berlin--21st century.
Architecture--Germany--Berlin--History--20th century
Architecture--Germany--Berlin.--20th century.
City planning--Germany--Berlin--History
Princeton subject headings:
Architecture--Germany--Berlin--21st century.
Berlin (Germany)--Buildings, structures, etc.
Mitte (Berlin, Germany)--Buildings, structures, etc.