Columbia subject headings:
City walls--Conservation and restoration--Italy--Rimini Region.
Fortification--Italy--Rimini Region--History.
Rimini Region (Italy)--Buildings, structures, etc.
Harvard subject headings:
Brick walls--Conservation and restoration--Italy--San Clemente.
Castello di San Clemente (San Clemente, Italy)
Castles--Conservation and restoration--Italy--San Clemente.
Castles--Italy--San Clemente.
Fortification--Italy--San Clemente.
San Clemente (Italy)--Buildings, structures, etc.
Princeton subject headings:
Brick walls--Conservation and restoration--Italy--San Clemente.
Castello di San Clemente (San Clemente, Italy)
Castles--Conservation and restoration--Italy--San Clemente.
Castles--Italy--San Clemente.
Fortification--Italy--San Clemente.
San Clemente (Italy)--Buildings, structures, etc.