Fontana delle Tartarughe, Rome

Tucked into the small Piazza Mattei in Rome's old Jewish Ghetto, the Turtle Fountain is a quiet favorite that many visitors stumble on by accident. Giacomo della Porta designed it and Taddeo Landini cast the four slim bronze youths in the 1580s, each resting a foot on a dolphin. The little turtles they lift toward the upper basin came later, added during a restoration around 1658, and are usually credited to Gian Lorenzo Bernini or Andrea Sacchi.