Namur : The Citadel

Standing proudly on its rock spur, the superb fortress erected by Vauban cocoons the city within its protective walls. Covering an area of 80 hectares, it was one of the largest fortresses in Europe. With seven kilometres of galleries, the Citadel of Namur can boast of having been that with the most underground passages in Europe. It is the only one in Belgium that can be visited: guided tours through the underground tunnels, walks, events and entertainment make this a highly appreciated centre of leisure and relaxation.