The Pont du Diable on the Hérault River is one of many bridges in France with this name (it means Devil's bridge). Constructed by Benedictine monks in the first half of the 11th century, it provided a link between the abbey at Aniane and the Gellone Abbey at Saint-Guilhem-le-Désert. Though subsequently widened and raised several metres around 1770, it has retained its original shape. Vehicular traffic is now catered for by a newer bridge, from which splendid views may be had of the original bridge and an aqueduct that takes water to the vineyards of Saint-Jean-de-Fos.
The bridge has been listed by the French Ministry of Culture as a monument historique since 1935 and is listed as a UNESCO World Heritage Site as part of the World Heritage Sites of the Routes of Santiago de Compostela in France.
References:The Villa d'Este is a 16th-century villa in Tivoli, near Rome, famous for its terraced hillside Italian Renaissance garden and especially for its profusion of fountains: the extraordinary system contains fifty-one fountains and nymphaeums, 398 spouts, 364 water jets, 64 waterfalls, and 220 basins, fed by 875 meters of canals, channels and cascades, and all working entirely by the force of gravity, without pumps. It is now an Italian state museum, and is listed as a UNESCO world heritage site.
Tivoli had been a popular summer residence since ancient Roman times due to its altitude, cooler temperatures and its proximity to the Villa Hadriana, the summer residence of the Emperor Hadrian I.
The Villa was commissioned by Cardinal Ippolito II d'Este (1509-1572), second son of Alfonso I d'Este, the Duke of Ferrara and grandson of Pope Alexander VI, along with Lucrezia Borgia.