Fortresses and bunkers on the map: over 100 military heritage sites in Finland, Salpa Line included. By municipality, free and without sign-up.
144 places in
The map shows 25 fortresses & bunkers in Helsinki. This is the number of places in this service, not an official total for the municipality.
12 places have parking within 500 metres (typically 225 m) and 11 places have a bus stop nearby (typically 225 m). Distances are measured to the nearest parking area and bus stop marked on the map.
Viaporin maarintaman ampumatarvikevarasto is 3 km from the centre. The farthest is about 14 km away.
Viaporin maarintaman ampumatarvikevarasto, Viaporin maarintaman rauniot: Reimarla. These have their own description, a photo or a Wikipedia article, so the place page offers background beyond the location alone.
On the place's own page. 3 places in Helsinki have a link to their own website. The most up-to-date information is always on the place's own site.