오트손‬에서 가장 멋진 ‪14‬개의 동굴

Open only on weekends from 2 pm to 6 pm in summer. Check in advance.

Nice hike

The 15th century building displays Gallo-Roman finds and some paintings.

Parish Church of the Beheading of Saint-Jean-Baptiste (rebuilt at the beginning of the eighteenth century on medieval foundations of the thirteenth century): Latin cross plan; three naves; cross vault; numerous paintings, sculptures.

The site of Oiselay-et-Grachaux, the "bird hill", has been inhabited since prehistoric times, as evidenced by the discovery of a Neolithic station. In ancient times, Oiselay was located on the Roman road linking Besançon to Langres. Until the eighteenth century, the Lord of Oiselay ruled the area. Stephen II of Oiselay, head of the younger branch of the House of Burgundy, had a fortified castle built in 1227 AD. * Fontaine-lavoir (xixe siècle) : basin ; borne fontaine ; stone of the waist ; columns. * Chapelle du cimetière recouverte de lierre. * Numbers of old houses and farms. * Croix de chemin du 19th century. * Mairie-school, du 19th century. * Ruins du château-fort were renovated during the twentieth century, dating from the seventh century during the armies of Louis XI and dismantled during Louis

Great hotel, especially for festive occasions. Occasionally visits possible for an admission fee.

Considered by some to be one of the most beautiful castles of the 19th century, it was built in a neo-Louis XIII style between 1882 and 1887 on the ruins of an old castle destroyed during the Battle of Villersexel in 1871. Its furniture dates also from this period. Now private, it can be visited between April and October. It also serves as a reception venue for weddings or events.

Ollans Castle was built in the 18th century. It is surrounded by a vast garden bordered by the river, and decorated with two statues from the 1740s representing Diana and Apollo. It belonged to Charles Derosne, a beekeeping enthusiast and friend of Sully Prudhomme. It is also in this castle that the writer composed his first collection of poetry, Le Bonheur. The castle cannot be visited these days, but it is a great place to take a photo.