Kasteel van Horst is a restored medieval fortress surrounded by moat and woodland near Leuven, first documented in 1434 though with origins tracing to the 12th century. The castle's defining square stone tower dates to the 15th century, while its chapel, coach house, and surrounding courtyard wings reflect extensive 17th-century renovations by Maria-Anna Van den Tympel. The property remains a living cultural landmark hosting weddings, medieval reenactments, art festivals, and private gatherings, with an on-site restaurant (Het Wagenhuis Horst) serving traditional fare and local specialties. Notably, Horst Castle is the birthplace of 'De Rode Ridder,' a celebrated cartoon character created by Willy Vandersteen, adding to its cultural significance in Belgian heritage.