Columbia subject headings:
Architecture--Germany--Braunschweig--Exhibitions.
Braunschweig (Germany)--Buildings, structures, etc.--Exhibitions.
Braunschweig (Germany)--History--Exhibitions.
Harvard subject headings:
Braunschweig (Germany)--History--Exhibitions.
Braunschweig (Germany)--In art--Exhibitions.
Princeton subject headings: