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Sea Fortress Suomenlinna, Helsinki (Finland)
Suomenlinna is an 18th-century sea fortress and nature area with centuries-old artillery and defensive walls spread across 6 linked islands. Walking trails cross parkland between popular sights like the Kings Gate drawbridge and Suomenlinna Museum which recounts military and maritime history. Submarine Vesikko lets visitors explore a restored 1930s vessel. Theres also a brewery and several waterside restaurants.
Sea Fortress Suomenlinna Helsinki Finland 00190
60.148884
24.984615