Hermitage of Santa Caterina del Sasso is a Roman Catholic monastery perched on a rocky ridge on the eastern shore of Lake Maggiore.
The monastery can be reached on foot by descending down a long winding stairway or by taking an elevator or by a number of ferry services or boats that dock at the pier.
The construction of the monastery dates from the 14th century, although the more recent frescos are from the 19th century. It consists of three buildings: the southern convent, the convent and the main church. In 1914 it was declared a national monument.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.