Amy Cohen takes a look at the socioeconomic and racial tensions in South Philadelphia that exploded into a six-day riot in the early 1900s

As Philadelphia heads into a wide open year with a new administration at the helm of the city, Hidden City takes one last look at 2015. Our fifth annual Lost Buildings list is presented here by Daily co-editor Brad Maule

Demolition permits have been pulled for the church where the great contralto Marian Anderson first sang in a choir and began her groundbreaking career. Contributors Rachel Hildebrandt and Oscar Beisert rushed to file a nomination to place the building on the Philadelphia Register of Historic Places only to find an ineffectual administrative procedure still firmly in place