Columbia subject headings:
Architecture--Competitions--Italy--Siena--Exhibitions.
Facades--Conservation and restoration--Italy--Siena--Exhibitions.
Siena (Italy)--Buildings, structures, etc.--Exhibitions.
Harvard subject headings:
Architecture--Competitions--Italy--Siena--History--20th century--Exhibitions.
Architecture--Conservation and restoration--Italy--Siena--Exhibitions.
Architecture--Italy--Siena--Exhibitions.
Banca monte dei paschi di Siena--Art collections--Exhibitions.
Drawing--Italy--Siena--Exhibitions.
Facades--Conservation and restoration--Italy--Siena--History--20th century--Exhibitions.
Facades--Italy--Siena--Designs and plans--History--20th century--Exhibitions.
Facades--Italy--Siena--Exhibitions.
Siena (Italy)--Buildings, structures, etc.--Conservation and restoration--Exhibitions.
Siena (Italy)--Buildings, structures, etc.--Exhibitions.
Princeton subject headings:
Architecture--Competitions--Italy--Siena--History--20th century--Exhibitions.
Architecture--Italy--Siena--Exhibitions.
Banca monte dei paschi di Siena--Art collections--Exhibitions.
Drawing--Italy--Siena--Exhibitions.
Facades--Conservation and restoration--Italy--Siena--History--20th century--Exhibitions.
Facades--Italy--Siena--Designs and plans--History--20th century--Exhibitions.
Siena (Italy)--Buildings, structures, etc.--Exhibitions.