Chicago Maritime Museum is a 501(C)(3) Nonprofit registered in the US under Tax ID 36-3205719
Chicago Maritime Museum®. Registered in U.S. Patent and Trademark Office
Summer hours will take effect beginning Sunday, July 4. We will be closed on July 4 for the holiday. The new CMM opening days are to be Tuesday through Saturday, 10am until 4pm. The museum will be closed Sundays and Mondays. Come on down and see our renovated museum and our new WPA mural, "History of Ships."