Columbia subject headings:
Gardens--Italy--Milan.
Milan (Italy)--Buildings, structures, etc.
Palaces--Italy--Milan.
Harvard subject headings:
Courtyards--Italy--Milan.
Decoration and ornament, Architectural--Italy--Milan.
Gardens--Italy--Milan.
Milan (Italy)--Buildings, structures, etc.
Palaces--Italy--Milan.
Princeton subject headings:
Gardens--Italy--Milan.
Milan (Italy)--Buildings, structures, etc.
Palaces--Italy--Milan.