Dates and times are subject to change by organizers. Please visit the organizers’ website for the latest information.

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  • Lyman Estate southern woods cleanup

    Lyman Estate 185 Lyman Street, Waltham

    Help remove trash that has accumulated in the woods on the south side of the property near the Mass Central Rail Trail. Afterwards, volunteers can enjoy a free tour of the property, light refreshments, and the satisfaction of a job well done. Supplies and instructions will be provided, but bring work gloves if you have […]

    Free
  • Crazy Rube Goldberg Week!

    Charles River Museum of Industry & Innovation 154 Moody Street, Waltham, United States

    A Week-Long Build In The Museum Main Gallery! Zachs Contraptions Starting on Monday, March 30th, and continuing through Friday April 3rd Rube Goldberg Machine Build in the Museum Main Gallery FREE with Museum Admission Using parts and pieces found here at the Museum, as well as in his own collection, master contraption builder Zach Umperovich […]

    Free
  • Community Town Hall on surveillance cameras, use of Waltham Common

    City of Waltham Government Center 119 School Street, Waltham, MA

    This town hall is a forum for community members to present information about two topics: The use of surveillance technology and automatic license plate reader technology. Use of Waltham Common […]

  • New England Donor Services (NEDS) Banner Raising

    Waltham City Hall 610 Main St., Waltham, MA, United States

    To kick-off National Donate Life Month, which is celebrated every year in April, New England Donor Services (NEDS) will be hosting a banner raising event at Waltham City Hall to bring awareness […]

    Free
  • The Tiny Gardens of the MVCMA: A National Historic Landmark

    Waltham Public Library 735 Main St, Waltham, MA, United States

    The Gingerbread Cottages of the Martha's Vineyard Camp Meeting Association in Oak Bluffs are a National Historic Landmark: a collection of over 300 colorful, 19th-century Carpenter Gothic-style homes known for […]

    Free
  • Community Passover Seder in Waltham

    Join Temple Beth Israel in Waltham for a joyful and participatory community seder open to all. Our seder is uplifting with traditional and new songs, relevant discussion and an opportunity to connect with friends and family or meet new people. Our in-house volunteer committee prepares a homemade kosher for Passover meal in our kitchen. Fee: […]

    $75
  • Mill Talk: Failing Forward: The Critical Role of Failure in Creating Successful Rube Goldberg Machines

    Charles River Museum of Industry & Innovation 154 Moody Street, Waltham, United States

    This Mill Talk explores how failure functions not as a setback, but as an essential tool in the design and construction of successful Rube Goldberg Machines, highlighting how misfires, breakdowns, and unexpected outcomes inform engineering decisions, improve reliability, and foster creative problem-solving. Zach Umperovitch is a three-time Guinness World Records holder, a National Rube Goldberg […]

    Free