Salinillas de Buradón is a fortified town that keeps a great part of its defence walls. Due to its location, in the border of the Rioja Alavesa region, its defence was fundamental in the Middle Ages.
In 1264, the nobleman don Sancho ordered the movement of its population to its current location and the contruction of these walls, for which limestone was prominently used. In the 16th and 17th centuries, on the other hand, there was an important reform and some parts of the walls were changed. Some parts were demolished and the stones were used for the new constructions. The Northern entrance, with its special reduced arch, belongs to this time.References:
First record of Kastelholma (or Kastelholm) castle is from the year 1388 in the contract of Queen Margaret I of Denmark, where a large portion of the inheritance of Bo Jonsson Grip was given to the queen. The heyday of the castle was in the 15th and 16th centuries when it was administrated by Danish and Swedish kings and stewards of the realms. Kastelhoma was expanded and enhanced several times.
In the end of 16th century castle was owned by the previous queen Catherine Jagellon (Stenbock), an enemy of the King of Sweden Eric XIV. King Eric conquered Kastelholma in 1599 and all defending officers were taken to Turku and executed. The castle was damaged under the siege and it took 30 years to renovate it.
In 1634 Åland was joined with the County of Åbo and Björneborg and Kastelholma lost its administrative status.