Columbia subject headings:
Bell towers--Conservation and restoration--Germany--Heilbronn.
Bell towers--Germany--Heilbronn.
Heilbronn (Germany)--Buildings, structures, etc.
Kilianskirche (Heilbronn, Germany)
Harvard subject headings:
Heilbronn (Germany)--Buildings, structures, etc.
Kilianskirche (Heilbronn, Germany)
Princeton subject headings: