The International Spy Museum is a private non-profit museum dedicated to the tradecraft, history and contemporary role of espionage. The museum opened in 2002 in the Penn Quarter neighborhood of Washington, D.C., and relocated to L'Enfant Plaza in 2019.

Within the 20,000 square feet (1900 m²) of exhibition space, it features the largest ever public collection of espionage artifacts, shedding light on one of the world’s most secretive professions. Supported with historic photographs, displays, film, and video, mini cameras, counterfeit money, disguised weapons, and cipher machines reveal the role of human intelligence and spies throughout history.

Visitors can participate in interactive spy adventures, adopt their own covers, and unearth the stories behind the world’s most elusive spies through historic photographs and video interviews. The permanent collection traces the complete history of espionage, from the Greek and Roman empires, the Middle Ages, the Renaissance, the British Empire, the American Revolutionary War, the American Civil War, both World Wars, the Cold War, and through present day espionage activity.

The museum was conceptualized in 1996 as a for-profit organization from a Korean War code-breaker. It is one of the few museums in Washington, DC that charges an admission fee.

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