Columbia subject headings:
Cologne (Germany)--Buildings, structures, etc.
Kölner Rathaus (Cologne, Germany)
Harvard subject headings:
Architecture, Gothic--Germany--Cologne.
City halls--Germany--Cologne.
Cologne (Germany)--Buildings, structures, etc.
Kölner Rathaus (Cologne, Germany)
Princeton subject headings:
City halls--Germany--Cologne--History.
Cologne (Germany)--Buildings, structures, etc.
Kölner Rathaus (Cologne, Germany)