Liechtenstein National Museum building dated back to 1438. It used to house the princely tavern, custom house and the seat of the government. A work was carried out in 1998-2008 to renovate the building and it was extended towards the mountain slope. The museum displays artifacts about the history, culture and landscape of Liechtenstein in its three buildings and 42 exhibit rooms.
References: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.