Columbia subject headings:
Bernini, Gian Lorenzo, 1598-1680.
Piazza San Pietro (Vatican City)
Harvard subject headings:
Architecture, Baroque--Vatican City.
Bernini, Gian Lorenzo, 1598-1680.
Buildings--Vatican City
Piazza San Pietro (Vatican City)
Plazas--Italy--Rome.
Rome (Italy)--Buildings, structures, etc.
Princeton subject headings:
Bernini, Gian Lorenzo, 1598-1680.
Piazza San Pietro (Vatican City)