The Castle of Kastelholm Ålandwww.visitaland.com
The castle, which originally was used as a defence stronghold, was founded in the end of the 1300′s. The stronghold was then rebuilt at different times until the 1600′s when it had become a castle with mainly an administrative function. At the end of the 1600′s the castle was left to dilapidate. The castle has now been restored and is open for visitors.