Château de Boussu-en-Fagne stands in the tranquil valley of the Eau Blanche stream near Couvin in Wallonia. This historic castle dates from the 11th to 14th centuries in its origins, with significant reconstruction occurring in the 16th century under the wealthy Boussu family, evident in its distinctive round corner tower with artillery openings. The structure evolved over centuries—with neoclassical renovations in 1860 by architect Suys—combining medieval fortifications, Renaissance elegance, and 18th-century additions including a square tower and stone gate. The castle features period architecture reflecting its passage through prominent families including the Marotte, Kiévrain, and Licot families. Today privately owned by Count and Countess de Villermont, the castle is not open for public tours but remains available for private events and meetings.