Wedged between the hustle of New York and the grandeur of Washington, D.C., Philadelphia is America's smallest big city, America's biggest small city, and America's most American city. It is also a city in flux. Bruce Buschel is a native Philadelphian who revisits his hometown and, in doing so, revisits his personal history and the city's complex identity. Buschel was born on Broad Street, his father died on Broad Street; he flunked out of...