The Langres district is strongly marked by its military heritage, evident first of all in the town fortifications, but also in the presence of a number of well-preserved forts and batteries.
• La Bonnelle
• Cognelot (Chalindrey)
This military stronghold, built between 1874-1877, is part of a strengthened belt around Langres.
• St-Menge (Rolampont)
• La Pointe de Diamant (Hûmes)