
Photo : Velvet / Wikimedia Commons (CC BY-SA 3.0)
Château d'Olhain
Built in the 15th century on the site of an earlier wooden building, the Château d'Olhain, in the Pas-de-Calais, is made entirely of sandstone, like the keep of Bours. It is one of the few medieval castles to have kept its oval bailey.
It is reached by crossing a first bridge over the River Lawe; a second, once a drawbridge, leads to the castle. Altered by time, it still has a turret with a pepper-pot roof on the east side. In the commune of Fresnicourt-le-Dolmen, the castle is remarkably well preserved and stands out as the most important medieval building in the heritage of northern France. There is no guided tour; visitors make do with a brochure.





