Columbia subject headings:
Harvard subject headings:
Architecture, Domestic--Italy--Turin--History.
Castello del Valentino (Turin, Italy)--History.
Palaces--Italy--Turin--History.
Palazzo Carignano (Turin, Italy)--History.
Turin (Italy)--Buildings, structures, etc.
Princeton subject headings:
Architecture, Domestic--Italy--Turin--History.
Castello del Valentino (Turin, Italy)--History.
Palaces--Italy--Turin--History.
Palazzo Carignano (Turin, Italy)--History.
Turin (Italy)--Buildings, structures, etc.