Straßburg Castle fas first time mentioned in 1147. It was built by Roman I, the bishop of Gurk. The chapel was built in the late 12th century, consisting of nave, chancel and apse. In the 14th century, the chapel was raised by one floor, and another floor was erected in the 15th century above the choir. The last modification to to the choir took place in 1682.
In the 14th century, the eastern tower was built on the outside of the northern ring wall. There is a medieval kitchen, still preserved. The western tower (Münzturm) was built in the 15th century.
Today Straßburg castle hosts a folkloristic collection exhibiting objects from rural life of past centuries. The exhibition Women’s Artworks of the Werkmann collection shows unique exhibits from the past 200 years with needlework of rural life, nobility and bourgeoisie.
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.