France's southern Drôme region is a land of inspiration for artists. It's home to a string of medieval citadels nestled high over the valley. Some were still in ruins until around six decades ago, when painters and sculptors gave them a renaissance. Since then, subsequent generations have worked hard to preserve their beauty. Meanwhile, every week in Chabrillan, residents take turns to look after the botanical garden, while the forest of Saoû attracts geologists from around the world.