13 Abandoned Cold War Bunkers Hiding Incredible Secrets

4. Diefenbunker (CFS Carp), Canada: Canada's Cold War Seat of Government

Just outside Ottawa lies Canada's own continuity-of-government bunker, officially CFS Carp but nicknamed the "Diefenbunker" after Prime Minister John Diefenbaker. This four-story, 100,000-square-foot underground complex was built to house key government and military officials during a nuclear attack. Decommissioned and now Canada's Cold War Museum, its secret is its preserved snapshot of the era – complete with the Prime Minister's suite, the CBC broadcast studio, a medical center, and the ominous Bank of Canada vault, all designed to function independently for 30 days.