Since the public opening on April 4, 1973, New York's iconic Twin Towers remained a symbol of the city up until the tragic September 11 attacks. Take a look back at the iconic structures ...

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 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.