Columbia subject headings:
Cathedrals--Europe.
Christian art and symbolism--Europe.
Church architecture--Europe.
Harvard subject headings:
Cathedrals--Europe--Pictorial works.
Christian art and symbolism--Europe--Pictorial works.
Church architecture--Europe--Pictorial works.
Princeton subject headings:
Cathedrals--Europe--Pictorial works.
Christian art and symbolism--Europe--Pictorial works.
Church architecture--Europe--Pictorial works.