April 29, 2014 7:06 am Train Riders to Get Free Art Show A 5-mile stretch on Philadelphia rails will be getting an artistic makeover in an effort to cover up graffiti. US & World Videos 25:15 WATCH: Mayor Cherelle Parker announces all city workers will return to office full-time this summer 1:55 Penn students graduate amid extra security after an academic year full of unrest 11:16 Another campus protest in Philly: The Lineup 0:47 What advice did Keith Jones give to Arcadia University's graduating class? ‘Be bold' 1:11 Cabrini University graduates final class with Kylie Kelce addressing commencement