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.
New! Find and book your ideal hotel on TripAdvisor — and get the lowest prices

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
Open now
See all hours
Mon - Fri 9:00 am - 4:00 pm

A museum featuring the science of cryptolgy.

TripAdvisor Reviewer Highlights

Read all 136 reviews
Visitor rating
  • 79
  • 45
    Very good
  • 11
  • 0
  • 0
Lots of History: Small Museum

Great little museum. Shows the connection between intelligence and success in warfare. It also shows the connection between code-breaking and modern computers. Hours are not... read more

5 of 5 starsReviewed 1 week ago
charley a
Bel Air, Maryland
via mobile
Add Photo Write a Review

136 Reviews from our TripAdvisor Community

Traveler rating
Traveler type
Time of year
Showing 135: English reviews
Bel Air, Maryland
Level Contributor
17 reviews
common_n_attraction_reviews_1bd8 1 helpful vote
5 of 5 stars Reviewed 1 week ago via mobile

Great little museum. Shows the connection between intelligence and success in warfare. It also shows the connection between code-breaking and modern computers. Hours are not really convenient.

Thank charley a
Brisbane, Australia
Level Contributor
71 reviews
18 attraction reviews
common_n_attraction_reviews_1bd8 23 helpful votes
4 of 5 stars Reviewed 3 weeks ago via mobile

Definitely worth a visit if you are in to the history of cryptology from enigma to the Turing machine.

Thank Michael C
Rochester, New York, United States
Level Contributor
87 reviews
3 attraction reviews
common_n_attraction_reviews_1bd8 26 helpful votes
5 of 5 stars Reviewed August 21, 2016 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
142 reviews
25 attraction reviews
common_n_attraction_reviews_1bd8 35 helpful votes
5 of 5 stars Reviewed August 10, 2016

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 157 helpful votes
4 of 5 stars Reviewed August 6, 2016 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
12 reviews
7 attraction reviews
common_n_attraction_reviews_1bd8 4 helpful votes
4 of 5 stars Reviewed July 29, 2016

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
100 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
995 reviews
450 attraction reviews
common_n_attraction_reviews_1bd8 248 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 29 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

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?