Fort de Saint-Héribert is one of nine forts comprising the fortified position of Namur, built from 1888 to 1892 according to General Brialmont's designs. Constructed from unreinforced concrete rather than masonry—a new and experimental material for the era—the triangular fort is surrounded by ditches 6 metres deep and 8 metres wide, making it one of the largest Brialmont forts. Heavily bombarded during the August 1914 siege and again attacked in 1940, the fort has been carefully preserved. As the last remaining fort in the Namur belt accessible to visitors, it now operates as a museum preserving the stories of its defenders and wartime history.