©istockphoto.com / KenWiedemann

If your kids love exploring a new museum, pencil Smithsonian magazine’s 15th Annual Museum Day into your calendar. On September 21, all participating US museums will open their doors for free to guests with a branded ticket.

More than 1,500 museums are expected to participate. The venues include museums, zoos and beyond. Sixteen NJ spots are currently on the list, though new locations may be added over the summer. Here’s where you can get in for free in NJ:

  • American Labor Museum/Botto House National Landmark, Haledon
  • Aviation Hall of Fame and Museum of New Jersey, Teterboro
  • Cooper Gristmill, Chester
  • Cornelius Low House, Piscataway
  • Dey Mansion, Wayne
  • East Jersey Old Town Village, Piscataway
  • Hamilton House Museum, Clifton
  • Historic Speedwell, Morristown
  • Historical Society of Princeton, Princeton
  • Hunterdon Art Museum, Clinton
  • Liberty Hall Museum, Union
  • Long Pond Ironworks, Hewitt
  • Morven Museum & Garden, Princeton
  • Old Barracks Museum, Trenton
  • Passaic County Arts Center at the John W. Rea House, Hawthorne
  • Westervelt-Vanderhoef House, Clifton

This year’s also the Smithsonian Year of Music, which combines music with art, culture, science and more at all Smithsonian institutions everywhere through music-themed programs.

You can download Museum Day tickets starting August 15. Every ticket gets you and a guest free admission (only one ticket per email). Head to the Smithsonian website for more information.