A bronze fountain by Reinhold Begas. It was erected in 1891 as a present from the city of Berlin to the Kaiser. Neptune, trident in hand, presides over the square supported by sea-nymphs with webbed feet carrying him on a seashell. Denizens of the deep (a seal, an alligator, snakes and turtles, among others) spray water at him in homage while languishing mermaids pour water into the fountain, clutching sea-nets overflowing with marine bounty.

The Neptune Fountain in Berlin was built in 1891 and was designed by Reinhold Begas. The Roman god Neptune is in the center. The four women around him represent the four main rivers of Prussia at the time the fountain was constructed: the Elbe , Rhine , Vistula , and Oder . The Vistula is now entirely in Poland, while the Oder forms the border between Germany and Poland. The fountain was removed from its original location at the Schlossplatz in 1951, when the former Berliner Schloss there was demolished. Eventually, after being restored, the fountain was moved in 1969 to its present location between St. Mary's Church and Rotes Rathaus. The diameter is 18 m , the height is 10 m .