CastleHelsinki, Finland
Suomenlinna Sea Fortress
Island sea fortress with military tunnels, old barracks, and Baltic ghost stories.
View on Street View (opens in Google Maps)Suomenlinna is a UNESCO-listed sea fortress spread across islands outside Helsinki. Military tunnels, barracks, and centuries of conflict have fed stories of watchmen, footsteps, and uneasy night-time passages.
Respect residents and marked routes: this is a lived-in heritage district as well as a visitor site.
Explore more haunts
Return to the interactive map to cluster across regions, fly into towns, and open more stories from Britain's paranormal directory.
Open haunted map