Today, we mark a significant anniversary at the Diefenbunker: Canada’s Cold War Museum. On June 5, 1994, the Diefenbunker was formally declared a national historic site, recognized for its importance as Canada’s most significant Cold War artifact and for its unique underground construction. Since this designation thirty years ago, the site has grown to be a one-of-a-kind immersive history destination, sharing its remarkable history with the world.
In Canada, a national historic site is a place that has been recognized by the federal government as having national significance and a notable contribution to the country’s history. These sites are designated by the federal government, upon recommendation from an organization called the Historic Sites and Monuments Board of Canada. Every year the Board considers approximately fifty candidates and, in close collaboration with Parks Canada, comes to a consensus. While some sites are managed by Parks Canada, many others, including the Diefenbunker, are independently operated.
The Diefenbunker’s designation as a national historic site gives it greater recognition for the importance of the site to our collective history and emphasizes the need to protect it. Today, the museum upholds the heritage values that merit the Diefenbunker’s status and safeguards the site’s Cold War history. Prior to its designation in 1994, the Diefenbunker operated as Canadian Forces Station (CFS) Carp and was Canada’s central communications headquarters, ready at any moment to house 535 designated government officials, military personnel, and civilians for a 30-day lockdown period if a nuclear attack was detected.
Thankfully, the site never had to be used for its intended purpose and was decommissioned later that same year in 1994. The Diefenbunker is a tangible reminder of the Cold War and represents Canada’s determination to survive in the face of nuclear catastrophe. The site’s heritage value lies in its location, design, and construction, which demonstrate Canada’s ability to persevere during a critical time in recent world history.
“We are so proud to celebrate the 30th anniversary of the Diefenbunker as a national historic site. Since its designation in 1994, the site has grown to be a one-of-a-kind immersive history destination, welcoming visitors from all around the world. As Canada’s Cold War Museum and an independent charitable organization, we continue to thrive as a community hub for experiential learning and collaboration, and are committed to preserving important stories and artifacts from our past for future generations.”
Christine McGuire, Executive Director, Diefenbunker: Canada’s Cold War Museum
From its beginnings as a top-secret project, to its current position as Ottawa’s immersive history destination, the Diefenbunker has stood the test of time, offering a unique glimpse into a pivotal moment in Canadian history. As we look to the future, we celebrate not only the bunker’s enduring significance but also the dedication of our founding members, volunteers, and staff over the years who have worked extensively to preserve the Diefenbunker and Canada’s Cold War story.
In celebration of this milestone anniversary, we invite you to join us for an exciting summer underground. the Diefenbunker will be open seven days a week from June through to the end of August. Immerse yourself in history as you step back in time and explore a 100,000-square-foot Cold War bunker — on a guided tour, with a free audio guide, or by doing an escape room. Special events include Canada Day, theatrical production Dief the Chief: October ’62, and spy-themed day camps!
