We noticed that you're using an unsupported browser. The TripAdvisor website may not display properly.
We support the following browsers:
Windows: Internet Explorer, Mozilla Firefox, Google Chrome. Mac: Safari.

National Cryptologic Museum

Certificate of Excellence
Sponsored by:
Map updates are paused. Zoom in to see updated info.
Reset zoom
Updating Map...
Sponsored by:
Get directions
Address: 8290 Colony Seven Rd., Baltimore, MD 20701
Phone Number: 301-688-5849
9:00 am - 4:00 pm
Closed now
See all hours
Mon - Fri 9:00 am - 4:00 pm

A museum featuring the science of cryptolgy.

TripAdvisor Reviewer Highlights

Read all 130 reviews
Visitor rating
  • 76
  • 42
    Very good
  • 11
  • 0
  • 0
Super Interesting!

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... read more

5 of 5 starsReviewed 1 week ago
Betsy M
New Orleans, Louisiana
Add Photo Write a Review

130 Reviews from our TripAdvisor Community

Traveler rating
Traveler type
Time of year
Showing 129: English reviews
New Orleans, Louisiana
Level Contributor
95 reviews
20 attraction reviews
common_n_attraction_reviews_1bd8 24 helpful votes
5 of 5 stars Reviewed 1 week ago

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 

Thank Betsy M
San Francisco
Level Contributor
928 reviews
428 attraction reviews
common_n_attraction_reviews_1bd8 229 helpful votes
5 of 5 stars Reviewed 3 weeks ago 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 4 helpful votes
4 of 5 stars Reviewed 4 weeks ago

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 

Thank cbingel
Sumner, WA
Level Contributor
48 reviews
12 attraction reviews
common_n_attraction_reviews_1bd8 24 helpful votes
3 of 5 stars Reviewed 4 weeks ago 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 

Thank Eyeteach1
Level Contributor
36 reviews
13 attraction reviews
common_n_attraction_reviews_1bd8 32 helpful votes
4 of 5 stars Reviewed 4 weeks ago

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 4 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 

Thank GaTemplar
Severn, Maryland
Level Contributor
196 reviews
42 attraction reviews
common_n_attraction_reviews_1bd8 64 helpful votes
4 of 5 stars Reviewed May 31, 2016

This may be a little bit of a niche museum, but if you are interested in the history of intelligence it is a nice little place to stop. My friend and I stayed about an hour or so, and the cost is minimal. Definitely worth the stop, just make sure you have the right directions or you will be politely,... More 

Thank Billibong64
Geleen, The Netherlands
Level Contributor
14 reviews
4 attraction reviews
common_n_attraction_reviews_1bd8 8 helpful votes
4 of 5 stars Reviewed May 21, 2016

Great visit on the way to the airport. takes about 45- 60 minutes but is was worth it. Guest service was very freindly

1 Thank Viviennevdw
Washington DC, District of Columbia
Level Contributor
10 reviews
7 attraction reviews
5 of 5 stars Reviewed May 21, 2016

Great for older kids, not so for younger. Need to be able to read, and to be interested in deception/war/cryptology, really. For adults with an interest, an amazing place. Smaller in size but very inclusive displays with lots of detail and a wonderful find.

Thank degd127
Murrells Inlet, South Carolina
Level Contributor
152 reviews
39 attraction reviews
common_n_attraction_reviews_1bd8 61 helpful votes
5 of 5 stars Reviewed May 17, 2016 via mobile

We stopped at this small museum near the NSA Headquarters while visiting family in the area. There is no charge but it has many interesting exhibits on espionage and code breaking. Heavy focus on spy planes and the Enigma and other code systems and the people who broke them, changing the course of wars. There are several great docents who... More 

Thank Joseph B

Travelers who viewed National Cryptologic Museum also viewed


Been to National Cryptologic Museum? Share your experiences!

Write a Review Add Photos & Videos

Is This Your TripAdvisor Listing?

Own or manage this property? Claim your listing for free to respond to reviews, update your profile and much more.

Claim Your Listing

Questions & Answers

Here's what previous visitors have asked, with answers from representatives of National Cryptologic Museum and other visitors
1 question
Ask a question
Millerstown, Pennsylvania, United States
over a year ago

See all questions (1)

Questions? Get answers from National Cryptologic Museum staff and past visitors.
Posting guidelines
Typical questions asked:
  • 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?