Annapolis Junction, MD: National Cryptologic Museum

FREE HOURS: Monday – Friday: 9:00 a.m. – 4:00 p.m. 1st & 3rd Saturday of the month: 10:00 a.m. – 2:00 p.m. Closed federal holidays NOTES: *Exhibits showing examples of machines, devices, & techniques of cryptology that have been used through history & helped with national defense; museum gives people … Continue reading