Spectacular archaeological site Glanum dates to the 3rd century BC. Walking the main street towards the sacred spring around which Glanum grew, you pass the fascinating remains of a once-thriving city, complete with baths, forum, marketplace, temples and houses. Two ancient Roman monuments – a triumphal arch (AD 20) and mausoleum (30 to 20 BC) – mark the entrance, 2km south of St-Rémy.