First record of Kastelholma (or Kastelholm) castle is from the year 1388 in the contract of Queen Margaret I of Denmark, wher ...
Bomarsund fortress and garrison was built in 1832-1854 by Russian Empire to defence Åland Islands against enemies. British a ...
The stone church of Sund was built at the end of 13th century or at least before 1310. Church was damaged by fire in 1672 and ...