Columbia subject headings:
Fountains--Conservation and restoration--Vatican City.
Fountains--Vatican City.
Ships in art.
Vatican City--Buildings, structures, etc.
Harvard subject headings:
Fountains--Conservation and restoration--Vatican City.
Fountains--Vatican City.
Gardens--Vatican City--History.
Gardens--Vatican City.
Ships in art
Vatican City--Buildings, structures, etc.--Conservation and restoration.
Princeton subject headings:
Fountains--Conservation and restoration--Vatican City.
Fountains--Vatican City.
Ships in art.
Vatican City--Buildings, structures, etc.