See the small chapel of the lords of Neuchâtel-Urtière, named, Saint-Ursin chapel.
You can easily walk around the ruins of the old castle. This is located in front of the chapel, on a spectacular rocky promontory. You cannot enter the site because of the collapse of the walls. Moreover, the whole site is fenced to avoid any accident. But we can, when there are no more leaves on the trees, see the rest of the imposing North-East wall and the rest of the North tower.