A hidden passageway now marks the site of an assassination attempt on Ronald Reagan that some say broke a 140-year-old curse.

This poor little statue is the most vandalized memorial in Washington.

The iconic D.C. restaurant where the Cuban Missile Crisis was negotiated, now a Walgreens.

There's a crumbling old mansion inside the Smithsonian National Zoo.

Cold War intelligence agents monitored communist embassies from an attic in a former pigeon coop.