Secret History of History (SHH) Walking Tour

Uncover 250 years of real spy stories on the streets of our nation’s capital. Get outside and spy! On the Secret History of History (SHH) walking tour, you can learn about the past 250 years of spying in America along a one-mile path through the heart of DC. This self-guided, app-based tour is free to download and begins in front of the International Spy Museum and ends at Freedom Plaza.