Britain fell silent at 11am on Sunday to mark 100 years since the end of World War One.The Queen watched the Whitehall service from the balcony of the nearby Foreign and Commonwealth Office.The Duchess of Cornwall and the Duchess of Cambridge joined the Queen on the balcony. Report by Khanomh. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn