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National Cryptologic Museum

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Address: 8290 Colony Seven Rd., Baltimore, MD 20701
Phone Number: 301-688-5849
See all hours
Mon - Fri 9:00 am - 4:00 pm

A museum featuring the science of cryptolgy.

TripAdvisor Reviewer Highlights

Read all 134 reviews
Visitor rating
  • 78
  • 44
    Very good
  • 11
  • 0
  • 0
Amazing history displayed extremely well

This was my third trip to the museum. If your interested in World history of codes and cyphers along with some real cool spy stuff from Thomas Jefferson to current, this is the... read more

5 of 5 starsReviewed 6 days ago
Bill P
Rochester, New York, United States
via mobile
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134 Reviews from our TripAdvisor Community

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Showing 133: English reviews
Rochester, New York, United States
Level Contributor
83 reviews
3 attraction reviews
common_n_attraction_reviews_1bd8 25 helpful votes
5 of 5 stars Reviewed 6 days ago NEW via mobile

This was my third trip to the museum. If your interested in World history of codes and cyphers along with some real cool spy stuff from Thomas Jefferson to current, this is the place to go! Activities for young children to 99 years old. The even have a working cypher machine the Germans used in WWII. I found it interesting... More 

Thank Bill P
Wellesley, Massachusetts
Level Contributor
137 reviews
25 attraction reviews
common_n_attraction_reviews_1bd8 35 helpful votes
5 of 5 stars Reviewed 2 weeks ago

What took us so long to discover this gem of a museum!!! Sitting alongside Route 32 on the D.C./ Baltimore corridor on the fringe of the NSA campus... this is a fascinating museum (free) devoted to cryptology. It spans from ancient times to the present. Worth a stop if you're in the area. Would be great for all ages. Why... More 

Thank HappyTraveler1957
Higham, Suffolk, UK
Level Contributor
309 reviews
173 attraction reviews
common_n_attraction_reviews_1bd8 154 helpful votes
4 of 5 stars Reviewed 3 weeks ago via mobile

It's amazing to see how much NSA has opened its doors to the public eye in the past decade. This little museum (located immediately outside the security perimeter of NSA) provides visitors of all ages with a glimpse if the Agency's mission. Visitors are greeted immediately by a very friendly staff/volunteer member. The museum is FREE, and contains 1-2 hours... More 

Thank Thomas - Genevi... H
Painesville, Ohio
Level Contributor
11 reviews
6 attraction reviews
common_n_attraction_reviews_1bd8 4 helpful votes
4 of 5 stars Reviewed 4 weeks ago

As a museum I would say that it has some interesting exhibits and historical notes. I don't believe it is comprehensive in its content, as I was looking for specific items from my time in the Marines (vanity strikes deep) and there was some coverage of the era when I worked with cryptographic equipment but I would have liked to... More 

1 Thank Bob L
New Orleans, Louisiana
Level Contributor
99 reviews
20 attraction reviews
common_n_attraction_reviews_1bd8 29 helpful votes
5 of 5 stars Reviewed July 21, 2016

This is one of those little places that you will either love or find totally boring, depending on your interest in cryptology and history. Since we are interested, it couldn't have been better. Learning all about the history of cryptology and espionage was fascinating! I had never thought about a "secret service" during the Revolutionary War, and I learned what... More 

1 Thank Betsy M
San Francisco
Level Contributor
949 reviews
433 attraction reviews
common_n_attraction_reviews_1bd8 239 helpful votes
5 of 5 stars Reviewed July 1, 2016 via mobile

Today was the second time I visited this Museum. But today a museum docent conducted a tour. The tour felt like a 90 minute College course it was so information filled. There was no other Museum like this in the United States. Go see this Museum and you will learn everything about secret codes and code-breaking in the United States.

Thank 7268
Level Contributor
17 reviews
12 attraction reviews
common_n_attraction_reviews_1bd8 5 helpful votes
4 of 5 stars Reviewed June 29, 2016

This is about 40 minutes from Baltimore by car, and not accessible by public transportation. It's a lot closer to the airport than it is to Baltimore. But that said, if the history of codes, ciphers, and cryptology or technology is interesting, you can spend hours going through the displays. Great location for a school science field trip, boy/girl scout... More 

1 Thank cbingel
Sumner, WA
Level Contributor
57 reviews
15 attraction reviews
common_n_attraction_reviews_1bd8 27 helpful votes
3 of 5 stars Reviewed June 28, 2016 via mobile

I visited this museum with my daughter and grandchildren. It is very interesting especially if you are in to decoding. I really enjoyed the little information about the Native American code talkers who assisted during WW II as well as the Enigma machine. The museum is small in size but very large in information. For me it was overwhelming as... More 

1 Thank Eyeteach1
Level Contributor
36 reviews
13 attraction reviews
common_n_attraction_reviews_1bd8 32 helpful votes
4 of 5 stars Reviewed June 28, 2016

This museum was a little gem if you want to know more about the history of cryptography in our country. For security reasons there is nothing newer than the 1990's here but what they present is well done. We listened in on a tour being given to college students and the guide was excellent. The exhibits covered the various devices... More 

Thank LGAretired
Atlanta Ga
Level Contributor
5 reviews
common_n_attraction_reviews_1bd8 5 helpful votes
5 of 5 stars Reviewed June 16, 2016 via mobile

If you enjoy spies, espionage and codes, this place is for you! Hidden gem located near the NSA and Fort Meade. If you enjoyed The Imitation Game, Bridge of Spies etc. You will enjoy this museum. It is free and can be enjoyed in several hours. From Wash DC take the MARC Penn line to the Odenton Md. stop, about... More 

1 Thank GaTemplar

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Millerstown, Pennsylvania, United States
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