Columbia subject headings:
Aachen (Germany)--Buildings, structures, etc.
Aachener Dom.
Altars--Germany--Aachen.
Church decoration and ornament--Germany--Aachen.
Harvard subject headings:
Aachen (Germany)--Buildings, structures, etc.
Aachener Dom
Altars--Germany--Aachen.
Church decoration and ornament--Germany--Aachen.
Princeton subject headings:
Aachen (Germany)--Buildings, structures, etc.
Aachener Dom.
Altars--Germany--Aachen.
Church decoration and ornament--Germany--Aachen.