Philadelphia 10 hours ago Overbrook Park home that once belonged to Muhammad Ali up for sale Muhammad Ali, one of the world’s greatest athletes, once graced this house tucked away in Philadelphia. US & World Videos 4:08 Hoop it up as LumiNature brings holiday lights to Philadelphia Zoo 1:42 Franklin Institute's Giant Heart beats again with some major upgrades 0:43 Chester County's own Gabrielle Zabosky eliminated on ‘The Voice' 0:35 Get pumped for reopening of Franklin Institute's Giant Heart 1:44 Discounted theater ticket booth ‘TKTS' coming to Old City to increase tourism