The Chapelle Sainte-Radegonde is carved directly into the tufa cliff east of the old town — originally a hermit's cave, then a 6th-century oratory, then a small chapel that took its present form in the medieval period. The interior is partly subterranean, with rough rock walls and the painted Plantagenet hunting fresco that is the main reason to visit.
A small museum next door covers local folk traditions and rural life in the surrounding countryside. Opening hours are limited, mostly summer afternoons; check at the tourist office. The walk up from the centre takes about 15 minutes.