July 7, 2016 3:03 pm Hidden Philly: Devil's pool Deep in Valley Green lies one of Philly’s best kept summer secrets: Devil’s Pool. US & World Videos 0:20 Teen girl shot in Southwest Philly, suspect in custody 0:27 FBI inspects American Airlines plane at PHL after bomb threat 1:40 Penn officials urging pro-Palestinian protesters to pack up and leave campus 2:17 Clear the Shelters: Meet Tails 0:38 Jury says Philly owes $16 million for wrongfully convicted man