In the seven years since the historic Atwater Kent building closed, the city-owned property near Seventh and Market Streets has attracted trash, needles, and graffiti. It’s a dispiriting scene for the Philadelphia History Museum’s former home of eight decades. It’s being neglected,” a concerned historic preservationist told The Inquirer. “And that shouldn’t be the case a block from Independence Mall and ahead of the semiquincentennial celebration.” We explain more about why the site has been lef