The <a href="//commons.wikimedia.org/wiki/Fontana_del_Nettuno_a_Bologna" class="mw-redirect" title="Fontana del Nettuno a Bologna">Fountain of Neptune</a>, by <a href="//commons.wikimedia.org/wiki/Jean_de_Boulogne" class="mw-redirect" title="Jean de Boulogne">Jean de Boulogne</a>, in <a href="//commons.wikimedia.org/wiki/Bologna" title="Bologna">Bologna</a>, Italy. Detail: one in four Allegories of the Four Main Rivers of the World.
Patrick Clenet
CC BY 2.5
Patrick Clenet