Namur is the capital city of the Wallonia region of Belgium. At the confluence of the Meuse and Sambre rivers is the Citadel, a medieval fortress with 7km of underground passages, gardens, views and a golden statue of a giant turtle. In town, the Felicien Rops Museum focuses on the works of this 19th-century, Namur-born erotic artist. The baroque St. Loup Church has marble columns and a richly carved ceiling.