Columbia subject headings:
Cathedrals.
Church decoration and ornament.
Harvard subject headings:
Catholic Church--Liturgical objects--Germany--Cologne.
Christian art and symbolism--Germany--Cologne.
Church decoration and ornament--Germany--Cologne.
Kölner Dom.
Liturgical objects--Germany--Cologne.
Religious articles--Germany--Cologne.
Princeton subject headings:
Cathedrals.
Church decoration and ornament.