Roman cities traditionally forbade burials within the city limits. It was therefore common for the roads immediately outside a city to be lined with tombs and mausoleums; the Appian Way outside Rome provides a good example. The Alyscamps was Arles’ main burial ground for nearly 1,500 years. It was the final segment of the Aurelian Way leading up to the city gates and was used as a burial ground for well-off citizens, whose memorials ranged from simple sarcophagi to elaborate monuments. — Wikipedia