As you elbow your way through the summertime crowds around the Trevi Fountain, you'll find it hard to believe that this little piazza was nearly always deserted before the film Three Coins in the Fountain brought the stampede of tour buses. Today this newly restored gem is a must on everybody's itinerary.
Supplied by water from the Acqua Vergine aqueduct and a triumph of the baroque style, it was based on the design of Nicolo Salvi and was completed in 1762. The design centers on the triumphant figure of Neptunus Rex, standing on a shell chariot drawn by winged steeds and led by a pair of tritons. Two allegorical figures in the side niches represent good health and fertility.
On the southwestern corner of the piazza is a somber SS. Vincenzo e Anastasio, with a strange claim to fame. Within it survive the hearts and intestines of several centuries of popes. According to legend, the church was built on the site of a spring that burst from the earth after the beheading of St. Paul; the spring is one of the three sites where his head is said to have bounced off the ground.