Photo taken on Oct. 22, 2014 shows the ceramic poppies, part of an art installation "Blood Swept Lands and Seas of Red" in the moat of the Tower of London, in London, Britain. By its completion on Armistice Day in 2014, the moat will contain 888,246 ceramic poppies, each of which symbolizes a military fatality in the World War I. (Xinhua/Han Yan)