Entry No. 24 — the Baltimore file — filed under: history

National Cryptologic Museum

Run adjacent to the National Security Agency (NSA), this museum is a public gateway to the secretive world of code-making and code-breaking, housing thousands of authentic cryptologic artifacts.

The move: Try your hand at decoding messages on a real, working German Enigma machine from WWII, and check out the Cold War-era Fortezza crypto cards.

📍 Annapolis Junction
💸 $
⚡ Up for anything
🌗 Indoors

Where: 8290 Colony Seven Rd, Annapolis Junction, MD 20701

Hours: Added 2026-07-21 — confirm current hours before you go.

#history #cryptography #military #museums

Plan a visit & invite your people →

Further reading: nsa.gov · visitannapolis.org

last checked: 2026-07-21