The museum has, since 1937, been housed in the former town hall, a neo-classical 19th-century building. The blue-stone stairway adorned with bronze statues pays testimony to wealth of the city in its heyday, when the mining and steel industries turned what had once been a sleepy village in the countryside into a powerful industrial city, ideally located on the banks of the Escaut river. Objects and paintings from that era are on display, illustrating the industrial history of Denain. The museum also takes you on a journey through time, with archeological findings from the Middle Ages, found when the passage for the town's wide gauge canal was dug. The objects found are very rare vestiges of 9th-century Norman raids on the Escaut valley. Among them there are Merovingian pearls and a real Viking sword.