Photo taken on Nov. 12, 2016 shows poppy petals and crosses at the Field of Remembrance at Westminster Abbey in London, Britain, one day after Armistice Day, which marks the end of World War I in 1918. Hundreds of small crosses bearing poppy petals have been planted in the Field of Remembrance to pay tribute to British servicemen and women who have lost their lives in conflict. (Xinhua/Han Yan)