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epa04475565 Visitors walk along the Mutianyu section of the Great Wall in Beijing, China, 04 November 2014. Built in 1368, the Mutianyu section has been known historically as protection against enemy attacks but has also become a symbol of cultural heritage and growing tourism in China over the years. The Asia-Pacific Economic Cooperation (APEC) 2014 Summit and related meetings will be held in Beijing from 05 to 11 November, gathering leaders of 21 member economies. EPA/ROLEX DELA PENA