Château de Montespieu is a neo-medieval fortress located in Navès. Built on foundations dating back to the twelfth century, it was completely rebuilt in the sixteenth century, rebuilt in the seventeenth and restored in 1900. The castle Montespieu is a vast rectangle which has the features of a neo-medieval fortress. It is flanked by seven towers, three in the main body and four pavilions constructed of square.
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.