Ontario - The Diefenbunker Cold War Museum

Commissioned by Prime Minister John Diefenbaker, 100,000 square feet of Ontario countryside was excavated to make room for a 4-story deep underground nuclear fortress, using 5000 tons of steel and 32,000 cubic yards of concrete. Today, as a fascinating Cold War museum, anyone can enter the 378-ft blast tunnel, cross through intimidating 14-inch thick bank vault doors, and explore the fully equipped world below.

Opening theme music ‘Bones’ © 2017 Max Serpentini

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I went there for a school trip it's in Ottawa