Diefenbunker: Canada's Cold War Museum


Ottawa’s immersive history destination.

The Diefenbunker is Canada’s most significant surviving Cold War artifact — it is an impressive four-storey underground facility that operated as the country’s central communications headquarters during the Cold War, ready at any moment in case of a nuclear attack. Today, it is a one-of-a-kind museum and national historic site, telling stories of national and international importance.

Descend into history, 75 feet underground, and experience award-winning exhibitions, tours, programs, events, and escape rooms.

Reserve your tickets today: diefenbunker.ca

Open year round: Wednesday to Sunday from September to May; 7 days a week from June to August 2024. Closed on statutory holidays. Free on-site parking.

  • Hours of Operation : Wednesday to Friday 10 a.m. to 4 p.m.; Saturdays and Sundays 10 a.m. to 3 p.m.
  • Wheelchair Accessible : Yes

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