Also known as “ the tritons”, this 18th century fountain, was built in 1717. In his coat of arms above a symbol that indicates three mountains, is an eight-pointed star. Two tritons sit on rocks in the centre of the basin, back to back with their tails entwined, supporting a basin in the form of a shell with the papal coat of arms carved on it. This fountain with its evocative atmosphere has always been afflicted by a scarcity of water. Clemente XI is remembered as a pope who did much for Roman town planning.