Like the billboard-lined highways of today, ViaAppia was a place to advertise: here, the aristocracy showed their wealth via their tombs, and the Roman Empire showed their might through engineering and punishment.
Sacred catacombs open to the public include the Catacombs of Priscilla (Via Salaria, 430), the Catacombs of St Callixtus (Via Appia Antica, 110-126) and the Catacombs of St Agnes (Via Nomentana, 349).