Take your event to the next level, 75 feet underground! Host your event in a unique historic space — this once-top secret Cold War bunker, now a museum and national historic site. Let us prepare an out-of-the-box experience for your meeting, team retreat, conference, catered event, or evening reception, for up to 420 people. Catering, A/V, linens, and other services are available. Please contact our team via email (found on our website at diefenbunker.ca/rentals) to arrange quotes or bookings. ------------------------ 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. This remarkable immersive history destination in Canada’s capital welcomes visitors from all around the world to learn from our past.