Built on the site of the Stadium of Domitian in 86 AD, Piazza Navona retains the arena’s peculiar oval layout. The square features the Church of Sant'Angese in Agone and three stunning fountains. For a collection of history, open-air cafés, and seasonal fairs, Piazza Navona is a Top 10 Rome attraction. To capture the magic of the square, it's best to go early in the morning to avoid crowds. After all, the early bird gets the worm (or in this case, the espresso)!