Beyond the pagan tombs, the Appian Way holds deep spiritual significance for the Christian world. Beneath the fields flanking this road lie the famous catacombs, such as those of Saint Callixtus and Saint Sebastian, where miles of underground tunnels served as early Christian cemeteries. Nearby, the small church of Domine Quo Vadis marks the legendary spot where Saint Peter, fleeing persecution in Rome, reportedly met a vision of Christ. When Peter asked, 'Lord, where are you going?', the reply prompted him to return to the city and face his martyrdom. For a modern visitor, the best way to soak in this history is by visiting on a Sunday, when the road is closed to private motorized traffic, transforming the historical corridor into a quiet pedestrian and bicycle heaven. You can rent a bicycle at the official service center located at Via Appia Antica 58 to cover more ground, as the archaeological park spans over 3,400 hectares of protected greenery and ruins.