Kasteel van Bets, located in Geetbets, is a 17th-century castle dating from 1667, rebuilt in brick and natural stone with its medieval core preserved through centuries of transformation. Originally known as Thof ter Elsemer, this estate features characteristic moat fortifications and was historically significant as a fief of the Dukes of Brabant. The rectangular residential structure is accompanied by a U-shaped farmyard and extensive grounds. Now designated as established architectural heritage and a protected monument, it reflects the architectural evolution of Flemish rural estates from medieval times through the late 20th century.