The 15C Bridolle Tower is machicolated. On the south side are fragments of the ramparts, forming an integral part of other buildings. From the north to the east side, the impressive fortifications are still standing.

The entrance has a Romanesque porch crowned by a flamboyant Gothic gable. Built from the 12 to the 16C, the church is dissymmetrical: the right-hand side is Romanesque and the left-hand side, chancel and transept are flamboyant. Du Guesclin's heart is kept in the left aisle of the transept. The modern stained-glass windows were made by the Barillet workshop.

The forest has fine plantations of beeches with, near the Chennedet crossroads, the Cordon des Druids, a megalith alignment. Also in the forest are two ruined dolmens.

Its site below the upper town is unusual. From the outer tower you can see the magnificent Guibé, Gobelin and Mélusine towers of the fortifications. Access to the inside is through the square Haye-Saint-Hilaire tower, revealing three successful sets of fortifications and then the lord's dwelling and chapel. An impressive fortress which proved relatively inefficient. In the courtyard is an open-air theatre in attractive surroundings.