Celebrate one of Philadelphia’s favorite modern summer traditions in the heart of the Historic District: Wawa Hoagie Day! Join thousands of locals and visitors to honor local heroes and enjoy a performance by Voices of Service. Free Wawa Shorti Hoagies will be served at noon on Arch Street between 5th and 6th Streets, followed by a free concert on Independence Mall featuring the U.S. Air Force Heritage of America Band. Admission to the Center is free courtesy of Wawa. Advanced tickets are recommended. Walk-ups are welcome.