Campus Martius Museum January 11, 2023 Location 601 Second StreetMariettaOhio45750 Next Event Discovering History Speaker Series - August 1, 2025 - 12:00 pm - 1:00 pm Upcoming Events Discovering History Speaker Series - August 1, 2025 - 12:00 pm - 1:00 pmDiscovering History Speaker Series - September 6, 2025 - 11:00 am - 12:00 pm