This Fontanone del Gianicolo (Janiculum Fountain) was also known as the Fountain of acqua Paola with water from Lake Bracciano flowing through. It was commissioned by Pope Paolo V Borghese (1605-1621) to Giovanni Fontana and Flaminio Ponzio and completed by Carlo Fontana. With an enormous white marble basin, it boasts three wide niches along with two minor ones alongside. Part of the large inscription over the niches says that the pipes of the Alseitana were restored, when in fact, they were from Triana. The columns came from the old St. Peter's Basilica. The papal coat of arms and the figures beside it are the work of Ippolito Buzio. In 1690 Pope Alessandro VIII Ottoboni (1689-91) replaced the five shells at the base of the hydrants with the magnificent, large basin. He opened the space facing the botanical gardens behind with its central arch, thereby constructing the square from which one can view the extraordinary panorama of Rome.