"Chateauvillain, small town of character", their website is HERE

The image Châteauvillain is most often associated with that of the Deer Park 272 ha (1,05 square mile) to the delight walkers. The history of Châteauvillain, over the centuries, like a true epic that is itself worth a visit. Inscribed in stone its fortified walls of the twelfth and fourteenth centuries, at the foot of its battlements at the top of his towers (there were once more than sixty), just as in a maze of alleyways and paths round, this amazing story just waiting to unfold. (description taken from the site "chateauvillain.com")
"Colombey-les-deux-églises": Official website HERE
From Year II until the Year X of the Revolution, Colombey takes the common name Colombey-la-Montagne. The etymology reflects the Latin columbarium (dovecote); the presence of two religious buildings apart from its many homonyms: the former priory of St John the Baptist (single aisle) founded in 1100 and the Notre-Dame in her Assumption church (chorus of the late eleventh century). (description taken from website "colombey-les-deux-eglises.com")
"Dinteville Castle": official website HERE
Dinteville Castle was built in the sixteenth century around a large tower of the thirteenth century. The rectangular platform surrounded by a moat and two round towers confining the main building may be the remains of the original building. (description taken from website "dinteville.com")
"Clairvaux": abbey and jail. The official website is HERE This is in Val d'Absinthe that a young abbot, Bernard of Clairvaux the future, and some monks from Citeaux, came, more than eight centuries ago, to clear a clearing of dry land in the heart of the old Gallic forest covering the hills and valleys at the borders of Champagne and Burgundy. (description taken from website "abbayedeclairvaux.com")