Suomenlinna

Walk the UNESCO Fortress That Saved Helsinki

Suomenlinna is the fortress that put Helsinki on the map. Built from 1748 by Swedish admiral Augustin Ehrensvärd across six islands, it transformed a burnt-out village into a strategically vital garrison town. UNESCO World Heritage since 1991. Walk the King's Gate (1753-1754), find Ehrensvärd's tomb designed by King Gustav III, explore tunnels and bastions that switched hands from Sweden to Russia to Finland. The fortress hosts a brewery, a café, and you can bring your own bottle on the 15-minute ferry from Kauppatori. A military fortress built to stop a Russian invasion, now a picnic destination with wine. Peak Helsinki.