Its presence illustrates the fact that until the Treaty of Utrecht in 1713 the Ubaye valley belonged to Savoy. It was Vauban who fortified the site by integrating the old 13th century tower. This medieval watchtower allows you to admire the landscape of the Seyne valley and houses an artwork installation by Mark Dion, Le donjon de l'ours (The Bear Dungeon), created as part of the Franco-Italian exchange programme VIAPAC.
The citadel has been classified and listed as a historical monument since 1978.
