Columbia subject headings:
Architecture--Germany--Berlin--Pictorial works.
Berlin (Germany)--Buildings, structures, etc.--Pictorial works.
Berlin (Germany)--Description and travel.
Berlin (Germany)--Pictorial works.
Historic districts--Germany--Berlin.
Nikolaiviertel (Berlin, Germany)
Harvard subject headings:
Princeton subject headings:
City planning--Germany--Berlin.
Nikolaiviertel (Berlin, Germany)