Columbia subject headings:
Historic buildings--Italy--Todi.
Palaces--Italy--Todi.
Plazas--Italy--Todi.
Harvard subject headings:
Historic buildings--Italy--Todi.
Palaces--Italy--Todi.
Plazas--Italy--Todi.
Todi (Italy)--Buildings, structures, etc.
Princeton subject headings:
Historic buildings--Italy--Todi.
Palaces--Italy--Todi.
Plazas--Italy--Todi.
Todi (Italy)--Buildings, structures, etc.