Old defensive cannon in the Suomenlinna Fortress Islands, Helsinki, Finland - Bildbanksfoto

Suomenlinna Fortress Islands, Helsinki, Finland - 23 August 2024. Old defensive cannon in the In the fortified islands of there are still many bunkers, barracks, cannons, hideouts initially built in 1748 and then used in the various wars that involved Finland. Only in 1973 the fortress ended its military function, gradually becoming an important tourist attraction. In 1991 the fortress was accepted on the UNESCO World Heritage List as a unique example of European military architecture of its time.