In Châtillon-en-Diois, which nestles at the foot of the cliffs of the Vercors, the narrow streets take you to the upper part of the village - the oldest part, which still has a medieval look. From Place Reviron, where the Clock Tower stands, there is a network of streets connected by alleyways (called "viols" in Diois). Châtillon is also one of the Drôme's "Botanical Villages" and has more than a hundred labelled plants, including several climbers: from spring to autumn, you can enjoy the flowers in bloom.