58 forts, 400 casemates, 1.5 million tonnes of concrete. This is a piece of heritage that weighs heavily on the landscape. It is known as the Maginot Line, built after the First World War at the instigation of André Maginot, M.P. for Meuse and Minister of War in 1922 and 1929. Although it proved ineffective, some of the main artillery or infantry constructions are in perfect condition and are open to the public. Among the artillery constructions are Simserhof near Bitche, Galgenberg at Cattenom, Michelsberg at Dalstein, Fermont at Longuyon and Hackenberg (the largest fort on the Maginot Line) at Veckring. Infantry forts include Le Bambesch, Immerhof at Hettange Grande, Zeiterholz at Entrange, the Fort aux Fresques at Hestroff, Fort Casso at Rohrbach-les-Bitche etc.