How Cold War Fears Helped Create Helsinki’s Subterranean Paradise
Nearly 200 miles of tunnels snake beneath Helsinki, providing a weatherproof subterranean playground for the Finnish capital’s residents and visitors. Yet hidden behind the bright lights of the underground attractions—which include a museum, church, go-kart track, hockey rink, and more—are emergency shelters fitted with life-sustaining equipment: an air fiation system, an estimated two-week supply of…