While this site has participated in Doors Open Ontario in the past, it is not part of the current season’s program. Please check the Home page for this year’s events and participating sites.

Diefenbunker: Canada's Cold War Museumin-person Doors Open Ottawa

  • In-person
  • Full wheelchair access
  • Guided tours available
  • Parking
  • Washrooms
Diefenbunker: Canada's Cold War Museum

The Diefenbunker was originally designed as the centre for Canada’s defence against nuclear attack. Now a museum, the Diefenbunker offers a one-of-a-kind experiential learning environment, coupled with award-winning programs, events and exhibitions. Step into history and immerse yourself in stories of the past as you explore the depths of the Diefenbunker or participate in the world’s largest escape room.

The Diefenbunker: Canada’s Cold War Museum is a four-storey Cold War bunker built to protect the government from a nuclear attack on Ottawa. Once top-secret, this underground facility is now open year-round. During Digital Doors Open, you can explore this site through a series of virtual tours, download some colouring pages from their collections, keep busy with various jigsaw puzzles, or play the online game, Project Rustic (Flash required). And learn more in the video below from Historica Canada about the Cold War and the important role that this site played.

Contact info

3929 Carp Road
Carp, Ontario



Year built: 1959
Building type:AttractionHistorical landmarkMuseum

Dates/hours open

Jun 04, 10:00am - Jun 04, 03:00pm

Saturday only: 10 a.m. to 3 p.m.; pre-registration required (check their website)