LONDON, ENGLAND - JULY 07: Prince William, Duke of Cambridge lays a wreath during a ceremony at the memorial to the victims of the July 7, 2005 London bombings, in Hyde Park on July 7, 2015 in London, England. Today is the tenth anniversary of the 7/7 bombings, when four suicide bombers struck the transport system in central London on Thursday 7 July 2005, killing 52 people and injuring more than 770 in simultaneous attacks. (Photo by Dan Kitwood/Getty Images)
