In addition to the capital of the Salyes at Entremont, where two major routes crossed, the inland route from the fords of the Durance to the Alpine valleys and the natural coastal route linking Italy and Hispania, among other important Roman towns in their territory may be mentioned Tarusco or Tarasco (Tarascon), Arelate (Arles), Glanum (Saint-Rémy-de-Provence) and Ernaginum (Saint-Gabriel, now part of Tarascon).
The real marvels are inside the building: the statue of Christ on the main altar, made from corn dough by the Tarasco Mexican Indians, brought here before 1550, the Flemish Gothic main altar, which dates back to before 1516, and the triptych of the Virgin Mary, brought from Flanders, also in the 16th century, depicting five religious scenes.