America of the seventies. Philadelphia: past and present(Америка семидесятых. Филадельфия: прошлое и настоящее)

Walk through one of the oldest cities in the United States - Philadelphia. "The City of Brotherly Love" or - Philly, as the Americans affectionately call it, is proud of its historical sights, because it was here that the Declaration of Independence and the US Constitution were signed.