The Romans built 80,000km of roads — and you can WALK on the original stones. Via Appia Antica (Rome→Brindisi, 540km) retains sections of original basalt paving from 312 BC. These aren't reconstructions — they're the ACTUAL stones that Roman legions, senators, and Christians walked on. Cart ruts carved by 2,000 years of traffic are still visible. Tombs line the sides. Milestones mark the distances. Walking a Roman road is time travel measured in footsteps.
1. Via Appia Antica (Rome, day walk): "Regina Viarum" — Queen of Roads (312 BC). Start at Porta San Sebastiano → walk south through the Appia Antica park. Original basalt paving visible from km 3 onward. Catacombs on either side. Tomb of Cecilia Metella (cylindrical, 1st c. BC). Villa dei Quintili (largest suburban villa). FREE on Sundays (road closed to cars). Bike rental €3/h at the park info point. Walk 5-10km for the best sections.
2. Via Cassia (Rome→Florence, sections): The road through Tuscia (northern Lazio) — walkable sections near Veio (Etruscan city), Sutri (Roman amphitheatre carved from rock), and Viterbo. Part of the Via Francigena pilgrimage. 3. Via Flaminia (Rome→Rimini, sections): Passes through Spoleto — the Ponte Sanguinario (1st c. BC bridge, still standing) and the Porta Fuga. 4. Via Traiana (Benevento→Brindisi): Trajan's alternative to the Appia — the Arco di Traiano in Benevento (best-preserved Roman triumphal arch) marks the start.
5. Via Claudia Augusta (Alps→Po Valley): Roman road connecting Italy to Germania — walkable/bikeable sections through South Tyrol and Trentino. Now a popular CYCLING route (700km from Donauwörth to Ostiglia). 6. Via Emilia (Rimini→Piacenza): The road that gave Emilia-Romagna its name (187 BC). The modern road follows the EXACT Roman route — 260km of dead-straight road across the Po Plain. Drive it to understand Roman engineering: they built a PERFECTLY STRAIGHT road across an entire region.