- Who
- International Spy Museum
- What
- 9,281 total number
- Where
- United States (Washington)
- When
The largest espionage museum, in terms of collection size, is the International Spy Museum in Washington, D.C., USA. As of 17 March 2020, this museum has a collection that includes 9,281 catalogued items.
A large portion of the museum's collection is a permanent loan from private collector and espionage historian H. Keith Melton.