Armory Square Lawn November 16, 2022 Location 241 Front StreetMariettaOH45750 Next Event Marietta Earth Day Celebration - April 25, 2026 - April 26, 2026 - 10:00 am - 1:00 pm Upcoming Events Marietta Earth Day Celebration - April 25, 2026 - April 26, 2026 - 10:00 am - 1:00 pm