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Fortress of Suomenlinna

Fortress of Suomenlinna
Photo: Michal Pise, Michal.Pise, CC BY 2.0 (licence)

Suomenlinna (Finnish: [ˈsuo̯menˌlinːɑ]), or Sveaborg (Swedish: [ˈsvɛːɑˈborj]), is a sea fortress composed of eight islands, of which six have been fortified. Located about four kilometres (2.5 mi) southeast of the city center of Helsinki, Finland, Suomenlinna is a popular destination for both tourists and locals, who enjoy it as a picturesque picnic site. Construction of the fortress began in 1748 under the Swedish Crown as a defense against Russia.

From Wikipedia, CC BY-SA 4.0.

  • Heritage listed

Place data from OpenStreetMap, © OpenStreetMap contributors, ODbL.

Updated 29 Sept 2026. Something wrong? Tell us.