Columbia subject headings:
Cologne (Germany)--Buildings, structures, etc.
Dwellings--Germany--Cologne.
Sepulchral monuments--Germany--Cologne.
Harvard subject headings:
Architecture, Domestic--Germany--Cologne Region.
Architecture--Germany--Cologne Region.
Sepulchral monuments--Germany--Cologne Region.
Princeton subject headings:
Cologne (Germany)--Buildings, structures, etc.
Dwellings--Germany--Cologne.
Sepulchral monuments--Germany--Cologne.