Columbia subject headings:
Architecture, Gothic--Italy--Orvieto.
Church decoration and ornament--Italy--Orvieto.
Duomo di Orvieto (Orvieto, Italy)
Facades--Italy--Orvieto.
Orvieto (Italy)--Buildings, structures, etc.
Sculpture, Gothic--Italy--Orvieto.
Harvard subject headings:
Decoration and ornament, Architectural--Italy--Orvieto--Pictorial works.
Decoration and ornament, Architectural--Italy--Orvieto.
Duomo di Orvieto--Pictorial works.
Duomo di Orvieto.
Facades--Italy--Orvieto--Pictorial works.
Facades--Italy--Orvieto.
Orvieto (Italy)--Buildings, structures, etc.
Princeton subject headings:
Decoration and ornament, Architectural--Italy--Orvieto--Pictorial works.
Decoration and ornament, Architectural--Italy--Orvieto.
Duomo di Orvieto--Pictorial works.
Duomo di Orvieto.
Facades--Italy--Orvieto--Pictorial works.
Facades--Italy--Orvieto.