Columbia subject headings:
Architecture, Romanesque--Italy--Elsa River Valley.
Church architecture--Italy--Elsa River Valley.
Church buildings--Italy--Elsa River Valley.
Elsa River Valley (Italy)--Buildings, structures, etc.
Strada di Francia (Italy and France)--Buildings, structures, etc.
Harvard subject headings:
Architecture, Medieval--Italy--Elsa River Valley.
Architecture, Romanesque--Italy--Elsa River Valley.
Church architecture--Italy--Elsa River Valley.
Princeton subject headings: