The prison museum introduces to the visitors the history of correctional treatment in Finland and the prison life in the past and these days. The most valuable item is the museum building itself with its authentic premises that have been maintained in their original condition since the time when the building still functioned as a prison. The building and the exhibition consist of three floors.
The prison museum functions in the former premises of the provincial prison of Häme. When the building was finished in 1871, it was the first prison in Finland with cells, and it was used until the 1993. The museum was opened to the public in June, 1997. The building was designed by the architect L. I. Lindqvist. The museum features a permanent exhibition and changing exhibitions. For more details, take a look at the museum's calendar of events. Special exhibition: elementary studies in prison. In this exhibition, you can find answers to questions about how and why reading, writing and basic mathematics were taught in prisons. Paid guided tours available only if booked in advance.
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.