A 14 km historic fortification west of Copenhagen, now a recreational area with paths and exhibits.

Zeljava Airbase, a Cold War relic in Croatia, features massive tunnels, runways, and a haunting military past.

Finderup Bunker: NATO’s Cold War HQ in Denmark, built to withstand nuclear attack, now sealed and buried.

Abandoned Soviet flight school in Georgia, built for pilot training, now restricted and heavily guarded.

WWII bunkers at Vigsø, part of the Atlantic Wall, now rest on Denmark's coast, offering history and exploration.

Abandoned aircraft found in Denmark, likely a Danish Air Force Spitfire PR Mk XI used for reconnaissance post-WWII.