Explore Suomenlinna sea fortress
Suomenlinna, Finland
Suomenlinna turns a ferry crossing into an encounter with Helsinki’s maritime history. Built across a group of islands, its bastions, barracks and dry dock reveal successive Swedish, Russian and Finnish chapters. Follow the marked Blue Route through the principal sights, then leave time for a museum or a quiet stretch of waterfront. The fortress remains a living district, which gives the monumental military landscape a more everyday, human scale.