Changing Skyline: Philadelphia's crumbling buildings: Photos of a 'City Abandoned'

Philadelphia is a city that is all too willing to squander its assets. We've hacked away entire blocks of Center City for parking lots, leveled Frank Furness' greatest buildings, and stripped our neighborhoods of their stately banks and churches. We're so blase about our past, we've even razed the houses where the city's founder and the nation's first president lived.