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

In February, the administration restored cuts to the World Trade Center Health Program's budget, but new staff cuts threaten ...

He also was involved in such notable projects as a new master plan for the National Mall in Washington, D.C. and an expansion of Dulles International Airport in Virginia.

David Childs, the lead architect of the One World Trade Center skyscraper that rose from the site where the Twin Towers collapsed in New York City during the 9/11 attacks, has died. He was 83 ...

David Childs, the architect behind 1 World Trade Center, the tallest building in the Western Hemisphere that was built on the site of the former Twin Towers destroyed in the Sept. 11 terrorist attacks ...