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

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, lead architect of the skyscraper that rose from the site where the Twin Towers collapsed in New York City during the 9/11 attacks, has died.

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 ...

A 26-year-old labourer, Balkrishna Rana, died when a construction lift collapsed at the World Trade Center site in Mumbai. Investigations ongoing. MUMBAI: A 26-year-old labourer lost his life late ...

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 ...