But where one building comes down, another must go up. At least it seems that way in the Philadelphia of today. Brad Maule turns that demolition frown upside down with this rundown of all the cranes building a new skyline

Boon times for our evolving skyline as large-scale construction projects pop up all over the city, but how will the designs hold up when the buildings are complete? Hidden City contributor and urbanist inspector Stephen Stofka puts an eye on five big residential projects about to begin