The Diefenbunker is a 100,000 square foot, underground, nuclear bunker located near Ottawa, Ontario, Canada's capital. It operated 24/7 for over 32 years and was officially shut down in 1994. It has reopened as a private museum and tours are conducted daily throughout the year.

VE3CWM (Cold War Museum)is located in the Emergency Radio Room, 45 feet underground. The original call sign was VE3GOC (Government Of Canada).

Come visit this cold war relic and take a walk down into history.