Ottawa’s Most Unique Historical Site

The Diefenbunker is a four-story, 100,000 square foot underground bunker, built between 1959 and 1961. During the Cold War it was intended to house 535 Canadian government officials and military officers in the event of a nuclear war. It served as Canadian Forces Station Carp until 1994.

For years it protected us from 75 feet underground and we knew virtually nothing about it. Today, it operates as a not-for-profit, charitable museum and boasts award winning tours and programs.

Visit us to experience how close we came to a nuclear disaster. A lot has changed since 1961. There is no other museum like the Diefenbunker – we promise! Visit us for a tour!

What’s On and Coming Up

couple kissing with gas masks
Atomic Love: a Touring Wine and Cheese | February 14, 6:30pm
How deep is your love?
80 feet deep…underground.
Come explore the depths of the Diefenbunker on a guided tour with wine and cheese! While touring, you’ll stop at different locations to sample delectable cheeses and fine wine pairings. Nothing says I love you, like exploring a Bunker with wine and cheese and your main squeeze! More details…

Diefundays | February 17, 18, 19, 20
From the Ontario Elementary and Secondary School PA Day on February 17th to Family Day on February 20th, the Diefenbunker is offering indoor and outdoor family activities inspired by the Winter Carnival at Canadian Forces Station Carp. More details…

Photo V Noftle 001 (800x658)
From Hand to Hand’ by Valerie Noftle
The Diefenbunker is proud to begin its year of celebrations for Canada’s 150th Anniversary with the “From Hand to Hand” photo exhibition by Canadian artist Valerie Noftle. More details…

In celebration of Canada’s 150th Anniversary, the “From Hand to Hand” photo series has also been made into a 2017 calendar which is now available through the Diefenbunker’s Cold War Store. For every calendar sold, a $10.00 donation will be made to Support Our Troups, the official charity of the Canadian Forces community.

The Diefenbunker is delighted to welcome Hull based filmmaker, Pixie Cram, as the Museum’s 2017 Artist-in-Residence. Pixie will spend the next few months discovering and researching the Diefenbunker to create a short film which will premiere at the Museum later this year. More details…

Our toilets are pooped, and NEED YOUR HELP!
Every detail of this 100,000 square foot underground facility was carefully designed, including its truly remarkable toilets. That’s right – its toilets. The Diefenbunker’s historic toilets are mounted on a one-inch thick, hard rubber pads and have flexible connections to the main system so they can’t break or disconnect in case of an explosion (insert potty humour here). Learn more about a Toilet Tale here. Or donate right now at

Escape the Diefenbunker
The Diefenbunker and Escape Manor have partnered to bring you the World’s Largest Escape Room! The experience runs Wednesday through Sunday evenings and resides within our 100,000 square foot facility. Staying true to our historic roots, this elaborate endeavor is themed around espionage… Read more!