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2023 Doors Open Ottawa at the Diefenbunker
2023 Doors Open Ottawa at the Diefenbunker
Tickets for Doors Open Ottawa 2023 are now sold out. Due to capacity, no walk-up visitors will be allowed entry on Saturday, June 3. The museum returns to its regular operations on Sunday, June 4. By reservation only, the Diefenbunker: Canada’s Cold War Museum will be opening its blast doors to visitors for free for Doors […]