- gezilecekyerler.com suomenlinna-kalesi/Finlandiya ülkesinin başkenti ve en büyük şehri Helsinki’de yer alan Suomenlinna Kalesi, 18. yüzyılın ikinci yarısında İsveçliler tarafında inşa edilen bir deniz kalesidir.
- twitter.com SuomenlinnaWHSMaailmanperintökohde #Suomenlinna'a restauroi, ylläpitää, esittelee & hallinnoi Suomenlinnan hoitokunta.
- commons.wikimedia.org wiki/Category:SuomenlinnaEnglish: Suomenlinna, a neigbourhood and group of islands in Helsinki, Finland. Suomi: Suomenlinna on kaupunginosa ja saariryhmä Helsingissä.
- tr.wiki34.com wiki/SuomenlinnaSuomenlinna bugün. Bugün Suomenlinna, yaklaşık 850 nüfusu ve 350 işi ( turistik cazibesi nedeniyle yaz aylarında artan) ile Helsinki'de istisnai bir mahalledir.
- lonelyplanet.com finland/helsinki/attractions/…At Suomenlinna's main quay, the pink Rantakasarmi (Jetty Barracks) building is one of the best preserved of the Russian era.
- kids.kiddle.co SuomenlinnaAn aerial view of Suomenlinna. Location. Helsinki, Finland. UNESCO World Heritage Site. Official name: Fortress of Suomenlinna. Type.
- historyhit.com locations/suomenlinna-fortress/Suomenlinna is accessible only by water: a ferry service therefore runs from the Market Square to Suomenlinna throughout the year.
- suomenlinnatours.com en/activities-at-suomenlinna…Suomenlinna Experience – short film. Once even called the Gibraltar of the North, Suomenlinna is one of the largest sea fortresses in the world.
- discoveringfinland.com blog/the-island-fortress-…Sweden lost the war, and seven centuries of its control of Finland came to an end, with Russia becoming the occupier of Suomenlinna.
- pointurier.org travel/finland/helsinki/…Suomenlinna Church, originally an orthodox church built by the Russians in 1854, and converted into an evangelical Lutheran church in 1929.