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Diefenbunker: Canada's Cold War Museum

3929 Carp Road, Ottawa, ON K0A 1L0

The Diefenbunker is a four-storey underground Cold War bunker turned museum and national historic site. Explore immersive exhibits, guided tours, programs, and escape rooms that bring Canada’s Cold War history to life near Ottawa.

Underground Cold War bunker museum near Ottawa with exhibits, tours, and immersive experiences.

June 6 @ 10:00-15:00: Doors Open Ottawa at the Diefenbunker 2026

Military · Militaire
CMA Reciprocal Admissions

Updated · Mis à jour — May 7, 2026

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