The Sääksämäki stone church was built at the turn of 15th and 16th centuries. It burnt down in 1929, and was consecrated in 1933. The major restoration was made between 1998-1999. The stained glass windows and wall paintings in the ceiling were done by the well-known local artist Kalle Carlstedt. The relief was also made by the another local artist Aukusti Veuro.
There are two old sculptures of Catholic saints in the church: St. Olaf (from the 14th century) and St. James (15th century).
Bomarsund fortress and garrison was built in 1832-1854 by Russian Empire to defence Åland Islands against enemies. British and French fleet attacked against it during the Crimean War in 1854. After a week of fighting the British stormed the remaining fort. Anglo-French forces destroyed it totally after battle. In the Treaty of Paris 1856, the entire Åland Islands were demilitarized, which is a status that has been preserved until this day.
Nowadays there are some ruins left and fortress area is open for visitors.