Marseille is one of the oldest cities in France.

Visit Avignion, it's 1 1/2 hours drive from Marseille. The Palace of the Pope and the bridge of Avignion and it's old city walls are very interesting. You will be amazed what the church was up to. Tours

Arles is something like a roman leftover. Quite charming but many of the buildings and monuments are leftovers from better days.