Verkkoin this episode, hear discussions on the mystery of the alaskan dark pyramid, nuclear weaponry, an account from a united states army.

Verkkothese once top secret bunkers with their blast doors, concealed entrances and underground habitation systems can provide a fascinating glimpse into the past,.

Verkkoduring world war ii, the british army built more than 600 of these underground bunkers—possibly upwards of 1,000—to serve as bases for small.

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