City Closures & Cancellations
All City facilities are closed, all programs are cancelled, and all but the most essential of City services are curtailed through at least June 14, 2020.
      • Closure & Cancellation Information (updated 6/4/2020 1:05 p.m.)
      • Emergency Assistance, Resources & Volunteer Opportunities (updated 6/4/2020 1 p.m.)

Discovery Days

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Discovery Day
Discovery Days
Discovery Days

The Gaithersburg Community Museum presents Discovery Days, a series designed to stir the imagination and foster family involvement in a fun and stimulating environment. Admission is free, donations gratefully accepted to help offset our costs. Registration is not required, but recommended. Suitable for ages 6 & up.


  • Sunday, March 22, 2020 • 1 - 4 PM - CANCELLED
    Topic: Codes
    Explore spy codes, signal messaging, and computer coding in this fun afternoon.

    • National Cryptologic Museum & the National Security Agency will display a Luftwaffe enigma machine & crypto-wheel used to make and decipher codes
    • Code Ninjas will help visitors learn what computer code is
    • Morse Radio Club will have multiple telegraph stations
    • Montgomery Amateur Radio Club will set up a radio antenna
    • Gaithersburg High School NJROTC will demonstrate naval flag signals
    • National Museum of Language
    • Explore DNA code with National Institute of Health’s Genome Project
    • Learn train whistles