Mentioned by TripSavvy
The 11 Best Museums in Ottawa
"The Diefenbunker was originally built in 1959 as a response to the escalation of the Cold War and was commissioned to act as a safe house for key parliament members in Canada. It was left empty until 1997 when it was turned into a public museum—and it’s well-worth the visit for anyone interested in military history or general survivalism. While the bunker itself is interesting to walk through and explore, the museum is also home to a rotating artist in residence and various visiting exhibitions on the Cold War."