From an air view, the arena-like shape of Rome - Piazza Navona can be easily noticed. As a matter of fact, the piazza was built on the Stadium of Domitian, whose ruins can still be admired in the adjacent church of Sant'Agnese in Agone. The church, designed by the great architect Francesco Borromini, is an excellent example of the Roman Baroque architecture.
In Piazza Navona are three fountains: Fontana del Moro, Fontana di Nettuno and in the centre of the square Bernini's magnificent Fontana dei Fiumi. Four allegorical statues portray the Nile, the Ganges, the Danube and the Rio de la Plata, symbolizing the four corners of the world.