2 Best Sights in Mariehamn and the Åland Islands, Finland

About 8 km (5 miles) 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 has explanatory signs. For more information, you'll want to pick up a pamphlet from the small visitor center if it's open.

At this popular museum near Kastelholm, the buildings and outhouses from the 18th century show what farming life was like on the island 200 years ago. A traditional maypole, which is a typical feature of the Åland landscape, is erected here on Midsummer Eve.