Lights Go Out To Mark World War One Centenary

LONDON, ENGLAND - AUGUST 04: Silhouetted tourists take pictures in front of advertising boards at Piccadilly Circus before the lights are turned off on iconic buildings as the city marks the centenary of the outbreak of World War I on August 4, 2014 in London, England. Monday 4th August marks the 100th Anniversary of Great Britain declaring war on Germany. In 1914 British Prime Minister Herbert Asquith announced at 11pm that Britain was to enter the war after Germany had violated Belgium's neutrality. The First World War or the Great War lasted until 11 November 1918 and is recognised as one of the deadliest historical conflicts with millions of casualties. A series of events commemorating the 100th Anniversary are taking place throughout the day. (Photo by Matthew Lloyd/Getty Images)