New York - The new home of Mexican drug lord Joaquin "El Chapo" Guzman is a New York City federal lockup that's one of the most secure in the nation.Guzman pleaded not guilty on Friday to charges he ran one of the world's biggest drug-trafficking operations. He's being held without bail in the 12-storey Metropolitan Correctional Centre in Manhattan.The centre is where Gambino crime family boss John Gotti and several former close associates of Osama bin Laden spent time awaiting trial. It has a special 10th-floor unit where around a dozen prisoners spend 23 hours a day in 6m x 3.6m cells.The inmates there are prohibited from communicating with one another. Meals are eaten in cells. Exercise is in a recreation area specifically for these inmates.