Kangasala grey granite church, with its beautiful baroque star ceiling, was built in 1767. Its rare wooden sculptures, dating back to the 15th century, make the church particularly fascinating. The tower collapsed in 1782 and the new one was completed in 1800.
There is a "bleeding stone" in the wall which is known among the local people. According the legend the girl called "Kuussalon Kaarina" was beheaded on it.
During the summer months the church is open daily, and guided tours are available.
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.