There's no better way to celebrate the quintessential American holiday, July 4, than at a state historic site or museum. The state observance is July 3, so most state historic sites and museums will be open July 4, as well as some July 3. This July 4 also kicks off "It's Revolutionary!," a two year long celebration of the birth of the nation. The 240th anniversary tribute focuses on North Carolina's significant role at colonial historic sites and will be observed July 4, 2015, through July 4, 2017.