Parco Regionale dell'Appia Antica
South of the Aurelian Walls, the traditional boundaries of Rome, begins one of the oldest and most important roads in the world: the Appian Way. Begun in 312 BCE, parts of the road are still used today by cars, pedestrians, and—especially—bicyclists. The large and uneven basalt stones are the original paving. Rent bikes at the Parco Regionale dell'Appia Antica office and pedal past Christian catacombs, Roman tombs, and the distant arches of the Claudian Aqueduct for a memorable afternoon excursion.