Kajaani Castle

Having acknowledged Kainuu's strategic position, the Kingdom set out to build a castle in Kajaani in 1604. At first the fort only encompassed a stone wall, two turrets and wooden buildings erected between them. Per Brahe ordered a second building phase to take place in the 1650's. The castle was used as an administrative centre, prison, military base and people's hideaway.

The castle was blown up during the Great Wrath, or Great Northern War, in 1716. The ruins of the castle have survived until this day and they are currently supervised by the National Board of Antiquities and Historical Monuments.