Piazza Navona is an elongated oval-shaped public square in Rome, it was built on the former Stadium of Domitian (the remains of which can still be seen on guided tours from Piazza Tor Sanguigna13). The original name was Circus Agonalis or Circus Agonalis. The Piazza was paved in the 15th century and used as a market place and a venue for special events including mock naval battles. Today is a lively and popular social meeting point in the numerous cafes, restaurants and places of entertainment which line the square.