The Romans buried their dead outside the city. This was law and custom simultaneously — the Twelve Tables prohibited burial within the city limits, and the prohibition was observed with sufficient consistency that the great roads leading out of Rome were lined with tombs for kilometers. The Via Appia’s funerary landscape, stretching from the Porta Capena south through the Alban hills, was among the most concentrated assemblages of monuments to the dead in the ancient world, ranging from the elaborate mausolea of senatorial families to the simple markers of freed slaves and soldiers. Death organized itself along the roads the living traveled, which meant that Romans moved through the presence of their dead every time they left the city.