Fontana del Tritone, Rome

Piazza Barberini Bernini's first freestanding public fountain, built for Pope Urban VIII in 1642 and 1643, sits in the middle of a square full of traffic, so it is easy to pass without noticing. Cross over and look properly: four dolphins hold up a shell, and on it a muscular Triton blows a jet of water from a conch. Hunt for the Barberini bees, the pope's family emblem, worked into the design. Pair it with the small Fountain of the Bees on the corner of Via Veneto, another Barberini commission, then walk on toward the Spanish Steps.