Four Rivers Fountain
Rome, Italy · built 1640
Fontana dei Quattro Fiumi (Fountain of the Four Rivers) is a fountain in the Piazza Navona in Rome, Italy. It was designed in 1651 by Gian Lorenzo Bernini for Pope Innocent X whose family palace, the Palazzo Pamphili, faced onto the piazza as did the church of Sant'Agnese in Agone of which Innocent was the sponsor.
Monument data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).