At 955m above sea level, Buffavento castle stands the highest of the three crusader castles in Cyprus. It probably originated as a Byzantine watch tower to guard against Arab raiders in the 10th century. The castle was extended during the Lusignan rule (1192–1489). The Lusignan kings used the castle mainly as a political prison. In particular, Peter I when reluctantly warned by his friend John Visconti of the queen's infidelity, repaid the favour by imprisoning and torturing him at Kyrenia, and later locking Visconti up at Buffavento to starve to death. By the 16th century, the castle was dismantled by the Venetians in an attempt to protect themselves, as their focus moved to the strongholds along the coast at Kyrenia and Famagusta.
From the seaward side, the castle is almost invisible, and the best long distance view is from the Nicosia side, where you can clearly see the remains of the castle bulging out from the top of the mountain. On the top level there are remains of a few buildings and a ruined chapel. However, the climb is worth it for the views alone, taking in Kyrenia, Famagusta, Nicosia and, on a good day, the Troodos Mountains.
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.