In the Piazza Navona, Bernini’s spectacular Fontana dei Fuimi (Fountain of the Rivers) dates from 1651 and showcases the four major rivers — the Nile, Ganges, Danube, and Rio de la Plata — from the four then-known continents.
Related blog: "On the road: Galileo's Italy, Day Two," by David J. Eicher, Editor
Photo credit: David J. Eicher