There's a lot more secrecy in U.S. politics than we think -- and that also extends to the protection of the nation's most powerful leaders.
When John F. Kennedy began his presidency at the height of the Cold War, a secret bunker was constructed for him on Peanut Island. The dingy, steel fallout shelter was made to protect the leader if disaster struck.
And that's not all -- an iconic 1963 photo of Kennedy and his young son reveals a secret door under the Oval Office desk. Who knew?
Check out other mysterious hideaways in the slideshow above.
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