Upon inspection of the Citadel, Napoleon labelled it as “Europe’s Termite Mound” due to its extensive network of underground passages. Discover 500m of restored passages with an immersive-guided tour that will take you to the heart of the history of the Citadel’s entrails, through sound and light.
walloniabelgiumtourism.co.uk/en-gb/content/citadel-namur-and-its-fascinating-network-underground-galleries