Rare news footage of the second plane hitting the World Trade Center on 11 September, 2001, has been unearthed online.

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.

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