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: Elbe, Rhine, Vistula, and Oder.
The fountain was removed from its original location at the Schlossplatz in 1951, when the former Berliner Stadtschloss (Berlin City Palace) there was demolished. Eventually, after being restored, the fountain was moved in 1969 to its present location between the St Mary's Church and the Rotes Rathaus. (source: Wikipedia)