LONDON, UNITED KINGDOM - AUGUST 05: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Prince Harry and Catherine, Duchess of Cambridge visit the poppy field art installation entitled 'Blood Swept Lands and Seas of Red' by artist Paul Cummins, in the moat of the Tower of London, to commemorate the First World War on August 5, 2014 in London, England. By it's completion on Armistice Day 2014 the moat will contain 888,246 ceramic poppies, one for each British and Colonial fatality during World War One. (Photo by Max Mumby/Indigo/Getty Images)