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. Childs ...

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.

(AP Photo/Ed Bailey, file) FILE - Architect David Childs puts his hand behind the top of ... of the One World Trade Center skyscraper that rose from the site where the Twin Towers collapsed ...