Columbia subject headings:
Gardens--Italy--Turin--History.
Palazzo reale (Turin, Italy)
Turin (Italy)--Buildings, structures, etc.
Harvard subject headings:
Gardens--Italy--Turin--History.
Palazzo reale (Turin, Italy)
Turin (Italy)--Buildings, structures, etc.
Princeton subject headings:
Gardens--Italy--Turin--History.
Palazzo reale (Turin, Italy)
Turin (Italy)--Buildings, structures, etc.