Fodor's Expert Review Parco degli Acquedotti
This massive park, technically part of the Parco dell'Appia Antica, was named for the six remaining aqueducts that formed part of the famously elaborate system that carried water to ancient Rome. The park has some serious film cred: it was featured in the opening scene of La Dolce Vita and in a rather memorable scene depicting some avant-garde performance art in La Grande Bellezza. On weekends, it's a popular place for locals to picnic, exercise, and generally enjoy a day out with their kids or dogs.