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National Cryptologic Museum

Certificate of Excellence
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Address: 8290 Colony Seven Rd., Baltimore, MD 20701
Phone Number:
+1 301-688-5849
09:00 - 16:00
Closed now
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Mon - Fri 09:00 - 16:00

A museum featuring the science of cryptolgy.

TripAdvisor Reviewer Highlights

Read all 164 reviews
Visitor rating
  • 97
  • 52
    Very good
  • 12
  • 1
  • 0
We had a good time!

We went with kids aged 9-15. They gave each kid a "code hunt" that kept them entertained. They got a prize at the end! Kids and adults enjoyed the museum. It took us 1 - 1.5... read more

Reviewed 3 days ago
Amy R
Mount Airy
via mobile
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164 Reviews from our TripAdvisor Community

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Showing 162: English reviews
Mount Airy
Level Contributor
150 reviews
40 attraction reviews
common_n_attraction_reviews_1bd8 35 helpful votes
Reviewed 3 days ago NEW via mobile

We went with kids aged 9-15. They gave each kid a "code hunt" that kept them entertained. They got a prize at the end! Kids and adults enjoyed the museum. It took us 1 - 1.5 hours. There is a 45 minute video but we didn't last for the whole video. Gift shop has inexpensive items. Museum and parking (there... More 

Thank Amy R
San Diego
2 reviews
Reviewed 1 week ago NEW via mobile

We had a few hours before catching our flight from BWI, and this was just place to spend a bit of time. It's not big, but it's well thought-out and chock-full of super cool information you never knew about code making and code breaking. You even get to play with an Enigma device! Plus, it's free! Only thing to note... More 

Thank abblase
2 reviews
Reviewed 1 week ago

Codes are everywhere if you know how to find them! A great family outing with interesting hands on exbits.

Thank Mike G
Cary, North Carolina
Level Contributor
370 reviews
66 attraction reviews
common_n_attraction_reviews_1bd8 92 helpful votes
Reviewed 1 week ago

We went to the museum primarily to see the German Enigma system from WW II. The museum has three machines and visitors are free to try them. We were lucky to hook up with a tour guide who had worked at NSA for many years. She did a great job guiding us through the history of code and cypher from... More 

Thank JoeBoxter
Hilton Head, South Carolina
Level Contributor
30 reviews
8 attraction reviews
common_n_attraction_reviews_1bd8 2 helpful votes
Reviewed 2 weeks ago via mobile

I'm a history buff and enjoyed this visit very much. Information is so important to everyone, it's great to be able to see how our Country has received and protected our information since the start.

Thank Cecilbusdriver
Severn, Maryland, United States
Level Contributor
35 reviews
8 attraction reviews
common_n_attraction_reviews_1bd8 4 helpful votes
Reviewed 3 weeks ago

I feel like I am bias on giving this review because I know people that work here and some of the people that made contributions to the museum, including myself. Some of the things you will be exposed to will be the importance of information, codes, and some of the people behind the history you learned in school. You will... More 

Thank Jack C
Level Contributor
83 reviews
31 attraction reviews
common_n_attraction_reviews_1bd8 21 helpful votes
Reviewed 4 weeks ago

My family and I loved this place. It is quaint but you will find many aspects interesting and can get lost in here. The staff is amazingly helpful and knowledgeable. We can't wait to return.

Thank CricketRDH
College Park, Maryland
Level Contributor
41 reviews
28 attraction reviews
common_n_attraction_reviews_1bd8 33 helpful votes
Reviewed 4 weeks ago

Not for everyone, but kind of a neat little "nerd" (in the best sense) paradise. Look for the signs on the Baltimore-Washington Parkway at the intersection of Rte. 32. Nondescript building is just off the campus of the NSA (National Security Agency), midway between DC and Baltimore. You have to wind around a bit, but follow the signs and you'll... More 

1 Thank Engine99
Level Contributor
47 reviews
9 attraction reviews
common_n_attraction_reviews_1bd8 44 helpful votes
Reviewed 1 March 2017

This place does not get alot of press - probably because of the nature of the people who run it! But it is free, there is (usually) plenty of free parking, and the range of topics and displays is great. You need to set aside a couple of hours at least to be able to read all the stories. I... More 

1 Thank rdeitz
Missoula, Montana
Level Contributor
241 reviews
58 attraction reviews
common_n_attraction_reviews_1bd8 154 helpful votes
Reviewed 11 February 2017

The best part about visiting this museum is that you get to drive by and look at the NSA from a distance. If you are looking to visit a museum with some pizazz - try the spy museum in DC.


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Millerstown, Pennsylvania, United States
over a year ago

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  • Do I have to buy a ticket for my infant?
  • How do I get there using public transportation?
  • Is there a restaurant or café onsite?