From Avignon: Les Baux Fortress, Pont du Gard & Saint-Rémy

The Pont du Gard was built around 50 AD as part of a 50-kilometre aqueduct system designed to carry 40,000 cubic metres of water per day from the spring at Uzès to the Roman city of Nemausus (Nîmes). The bridge, 49 metres high and 275 metres long, crosses the Gardon River in three tiers of limestone arches. It was built entirely without mortar — the blocks are held in place purely by their own weight and the precision of their cutting. The guide covers the extraordinary engineering achievement: the entire 50-kilometre aqueduct has a gradient of just 17 metres (a 0.034% slope), requiring surveying accuracy that would be impressive even today. The Pont du Gard itself is the highest surviving Roman aqueduct bridge, and the most complete. After the fall of Rome, it was maintained by successive authorities because the arches were used as a toll bridge — which is why it survived when other Roman structures did not.

Saint-Rémy-de-Provence is the birthplace of Michel de Nostredame (Nostradamus, 1503) and the location of the Saint-Paul-de-Mausole asylum where Vincent Van Gogh voluntarily committed himself in May 1889, one year before his death. During his 12 months at Saint-Paul, Van Gogh produced over 150 paintings including The Starry Night, Irises, and the series of Provençal landscapes with olive trees, cypress trees and the limestone crags of the Alpilles that are now among the most recognised images in Western art. The asylum (still operating as a psychiatric facility) is open to visitors; the replica of Van Gogh's room and the garden he painted are accessible. The guide covers Van Gogh's year in Provence — his productivity, his deteriorating mental health, and the specific Provençal landscapes that transformed his painting style.

Les Baux-de-Provence occupies the entire top of a white limestone spur in the Alpilles — a geological formation so distinctive that the mineral bauxite (aluminium ore) was first identified here and named after the village. The Lords of Baux were one of the most powerful dynasties in medieval Provence, controlling 79 towns at their peak and claiming descent from Balthazar, one of the Three Wise Men (whose star — the Baux star of eight points — appears on their coat of arms). Their castle was demolished by Cardinal Richelieu in 1632 after the Lords of Baux supported the Protestant Huguenots — he ordered the castle's destruction and fined the inhabitants for their loyalty. The ruins now cover the entire limestone plateau: towers, great hall, donjon, windmill and perimeter walls, with working reconstructions of medieval siege machines including trebuchets and mangonels demonstrated by costumed interpreters. The views from the plateau extend on clear days to the Camargue marshes, the Mediterranean, and the Rhône delta.