Columbia subject headings:
Christian art and symbolism--Vatican City.
Church architecture--Vatican City.
Cortile del Pappagallo (Vatican Palace, Vatican City)
Mural painting and decoration, Italian--Vatican City.
Harvard subject headings:
Gardens--Vatican City--History.
Parrots in art.
Vatican Palace (Vatican City)--Design and construction.
Vatican Palace (Vatican City)--History.
Princeton subject headings:
Christian art and symbolism--Vatican City.
Church architecture--Vatican City.
Cortile del Pappagallo (Vatican Palace, Vatican City)
Mural painting and decoration, Italian--Vatican City.