Žovnek Castle lies above Lake Žovnek. The Lords of Žovnek, later Counts of Celje, were named after the castle. The castle was first mentioned in 1278 as Castrum Sevnekke, and later as Sannegg. Its history goes back to at least the 12th century. The Žovnek noble family used to live there at the end of 12th century, but their descendants moved to Celje (Cilli) in 1333 and went to aquire title and estates, becoming the Counts of Cilli.
Since 1995, the castle has been restored by a group of volunteers within the framework of the Cultural and Historical Society in cooperation with the Municipality of Braslovče, and many of its covered rooms have been used in all their glory. From the castle, which is reached by a footpath and offers a pleasant walk, there are views of Lake Žovne, the northern peaks of the Posavje hills, the wooded slopes of the Dobrovelj plateau and even Celje.
The Gravensteen is a castle in Ghent originating from the Middle Ages. The name means 'castle of the counts' in Dutch. Arnulf I (918–965), Count of Flanders, was the first to fortify this place, building a medieval bastion on this high sand dune, naturally protected by the river Leie and its marshy banks. This bastion consisted of a central wooden building and several surrounding buildings, also in wood.
In the early 11th century, the wooden building was replaced by a stone residence, consisting of three large halls that made up three storeys, connected by a stone stairwell. The monumental stone staircase, the light openings, the fireplaces built into the walls and the latrines were signs of considerable luxury and comfort in those days. There was probably also a tower.