We live about 45 minutes away from this gem, and frequently take out-of-town guests here because of the variety of exhibits. Depending on your interest in history, you can stay for just a short time, or longer, but because it's free admission you don't feel obligated to spend all day (although you could, if you took the time to read... More

Next time you're planning a trip between Washington and Baltimore, plan a good two hour break to visit this out of the way museum. I did just that last summer and took my 12 year old son. The museum provides for all age groups. I probably could have taken my 8 year old daughter as well, but boys are more... More

Great exhibits, extremely knowledgeable docents. It takes you through the history of how cryptology efforts affected different eras. Best part...it's free! More

From the Jefferson Cipher wheel to eight enigmas, it's all amazing. More

They have many cool cryptologic devices from different eras of time. They even let you play with some of them! More

Make sure the museum is open before to visit. There's limited hours of operation. This museum provides wonderful exhibits and interactive models. There's even an enigma machine. Give yourself plenty of time -- although it's small, you can spend a few hours. While outside, take the short walk on the trail to see two reconnaissance aircraft used for secret missions. More

Small place and easily to navigate. Many exhibits and explanations are easy to understand. More

especially if you are into technology, all the original old computing equipment and stories you won't believe More

I visited the museum in 2007 while on a 4 day trip to Linthicum for equipment training courtesy of the Marines. My primary purpose for the visit was to see the C-130 in the Vigilance Park. My father was a part of that squadron and was there for the dedication ceremony. His photo and flight gear is in the display... More