The cities have been locked in battle since 1885, with no signs of stopping.
A partially demolished building fell onto a Salvation Army thrift store, trapping more than a dozen people inside.
A four-story structure undergoing demolition collapsed onto a thrift store in Center City this morning.
No injuries have been reported.
New data from the National Association of Homebuilders suggest it hasn't happened yet.
As household sizes continue to fall, the size of our homes keeps getting bigger