Fire was the primary cause of the collapse of World Trade Center Building 7 in New York City, according to a federal agency.

D.C., an expansion of Dulles International Airport in Virginia and the 7 World Trade Center building in Manhattan, according to his firm, Skidmore, Owings & Merrill. "David's contribution to the ...

D.C., an expansion of Dulles International Airport in Virginia and the 7 World Trade Center building in Manhattan, according to his firm, Skidmore, Owings & Merrill. “David’s contribution to ...

Architect David Childs talks about his design for the new 7 World Trade Center, a 52-story building which will rise to a height of 750 feet, during the design’s unveiling at the building’s ...