Bethlen Castle in Bahnea was built starting in 1545; between 1679 and 1719 it was fortified with stone walls, octagonal bastions, and gate towers. It combines Romantic style and Neo-Renaissance carpentry, with 42 rooms on three levels. During communism it housed public institutions, but deteriorated after 1989. In 2008 it was restituted to heirs, who later donated it to the Reformed Church.