Columbia subject headings:
Bologna (Italy)--Buildings, structures, etc.--Pictorial works.
Fontana del Nettuno (Bologna, Italy)--Pictorial works.
Fountains--Italy--Bologna--Pictorial works.
Harvard subject headings:
Fontana del Nettuno (Bologna, Italy)
Fountains, Renaissance--Italy--Bologna.
Giambologna, 1529-1608--Criticism and interpretation.
Neptune (Roman deity)--In art.
Sculpture, Renaissance--Italy--Bologna.
Princeton subject headings:
Bologna (Italy)--Buildings, structures, etc.--Pictorial works.
Fontana del Nettuno (Bologna, Italy)--Pictorial works.
Fountains--Italy--Bologna--Pictorial works.