Soumenlinna Sea Fortress

After my posts on my stamps and postcards blog, I received a few emails from the followers of these two blogs requesting me for a few more cards on Finnish Castles. It so happened that my friend Ella did send me some maxicards issued by the Finnish Postal Agency. So, the first one on the famous Soumenlinna Sea Fortress is here.
Situated on a group of islands off Helsinki, Suomenlinna was built during the Swedish era as a maritime fortress and a base for the Archipelago Fleet. Work on the fortress was begun in the mid-18th century. Today, it is a UNESCO World Heritage Site and one of Finland’s most popular tourist attractions. Suomenlinna is also a district of the city of Helsinki, with a permanent population of more than 800.