![FORTRESS, HELSINKI: Suomenlinna Fortress Island (Sveaborg) from a cruise ferry ship travelling on the Baltic Sea between Åland and Helsinki in Finland Stock Photo - Alamy FORTRESS, HELSINKI: Suomenlinna Fortress Island (Sveaborg) from a cruise ferry ship travelling on the Baltic Sea between Åland and Helsinki in Finland Stock Photo - Alamy](https://c8.alamy.com/comp/2T49MD6/fortress-helsinki-suomenlinna-fortress-island-sveaborg-from-a-cruise-ferry-ship-travelling-on-the-baltic-sea-between-land-and-helsinki-in-finland-2T49MD6.jpg)
FORTRESS, HELSINKI: Suomenlinna Fortress Island (Sveaborg) from a cruise ferry ship travelling on the Baltic Sea between Åland and Helsinki in Finland Stock Photo - Alamy
![Suomenlinna (Sveaborg) fortress. Constructing began in 1748. Iso Mustasaari in background of city of Helsinki Stock Photo - Alamy Suomenlinna (Sveaborg) fortress. Constructing began in 1748. Iso Mustasaari in background of city of Helsinki Stock Photo - Alamy](https://c8.alamy.com/comp/K6G7ED/suomenlinna-sveaborg-fortress-constructing-began-in-1748-iso-mustasaari-K6G7ED.jpg)
Suomenlinna (Sveaborg) fortress. Constructing began in 1748. Iso Mustasaari in background of city of Helsinki Stock Photo - Alamy
![CITY OF HELSINGFORS , ENVIRONS OF HELSINGFORS , & FORTRESS OF SVEABORG . Three panoramic views on a double page. by Anonymous.: Map | Garwood & Voigt CITY OF HELSINGFORS , ENVIRONS OF HELSINGFORS , & FORTRESS OF SVEABORG . Three panoramic views on a double page. by Anonymous.: Map | Garwood & Voigt](https://pictures.abebooks.com/inventory/14781832318.jpg)