Bomarsund Fortress Review
About 8 km (5 mi) from the village of Kastelholm in Sund are the scattered ruins of a huge naval fortress, which was built by the Russians in the early 19th century. It was only half finished when it was destroyed by Anglo-French forces during the Crimean War. The fortress is open for touring at all times and is has explanatory signs. For more information, you'll want to pick up a pamphlet from the small visitor center if it's open.
- Phone: 018/432–134
- Hours: Visitor center: June and Aug., weekdays 10–4; July, daily 10–4; call ahead, as times can vary
- Location: Mariehamn and the Åland Islands