Glanum was an oppidum, or fortified town, founded by a Celto-Ligurian people called the Salyens in the 6th century BCE. It was known for the healing power of its spring. It became a Roman city in Provence until its abandonment in 260 AD. It is located on the flanks of the Alpilles, a range of mountains in the Bouches-du-Rhône département, about 20 km (12 mi) south of the modern city of Avignon, and a kilometre south of Saint-Rémy-de-Provence. It is particularly known for two well-preserved Roman monuments of the 1st century B.C., known as les Antiques, a mausoleum and a triumphal arch (the oldest in France).
Read more about Glanum: The Monumental Center, The Residential Quarter and The Roman Baths, The Valley of The Sacred Spring, Glanum in Popular Culture