Columbia subject headings:
Architecture--Italy--Meta--Pictorial works.
Vaults (Architecture)--Italy--Meta--Pictorial works.
Walls--Italy--Meta--Pictorial works.
Harvard subject headings:
Princeton subject headings:
Architecture--Italy--Meta--Pictorial works.
Vaults (Architecture)--Italy--Meta--Pictorial works.
Walls--Italy--Meta--Pictorial works.