International Spy Museum
It is the only public museum in the United States solely dedicated to espionage and the only one in the world to provide a global perspective on an all-but-invisible profession that has shaped history and continues to have a significant impact on world events.
It was so awesome. I could have spent all day. Through their podcast, Spycast, I've learned about the intelligence community, history, espionage, COINTELPRO, HUMINT, SIGINT, OSINT, IMINT, MASINT, kompromat, dezinformatsiya, clandestine operations, active measures, agents provocateurs, honey traps, dead drops, brush passes, and fancy and cozy bears.
Very excited about the new facility at L'Enfant Plaza, supposed to open April 2019.