Close-up of the front side of the famous Radun Chateau. Found just a few kilometers outside of Opava, in a village of the same name (Radun), the Radun Chateau is a majestic chateau that was built in the 14th century. Throughout the centuries, however, the building has undergone numerous reconstructions as features from a variety of architectural styles including Gothic, Baroque, Renaissance and Classicism have been added to it.