An APEC logo is shown on the Bird's Nest stadium in Beijing, China, Nov. 6, 2014. The 2014 APEC Economic Leaders' Week is held in Beijing from Nov. 5 to 11. (Xinhua/Jin Liwang

Photo taken by multiple exposure on Nov. 6, 2014 shows the night view around the Bird's Nest stadium in Beijing, China. The 2014 APEC Economic Leaders' Week is held in Beijing from Nov. 5 to 11. (Xinhua/Jin Liwang

Photo taken on Nov. 6, 2014 shows the night view around the Bird's Nest stadium in Beijing, China. The 2014 APEC Economic Leaders' Week is held in Beijing from Nov. 5 to 11. (Xinhua/Chen Jianli

Photo taken on Nov. 6, 2014 shows the night view around the Pangu Plaza in Beijing, China. The 2014 APEC Economic Leaders' Week is held in Beijing from Nov. 5 to 11. (Xinhua/Gong Lei

Photo taken on Nov. 6, 2014 shows the night view around the Bird's Nest stadium in Beijing, China. The 2014 APEC Economic Leaders' Week is held in Beijing from Nov. 5 to 11. (Xinhua/Chen Jianli

Photo taken on Nov. 6, 2014 shows the illuminated sightseeing watchtower in the Olympic Park in Beijing, China. The 2014 APEC Economic Leaders' Week is held in Beijing from Nov. 5 to 11. (Xinhua/Chen Jianli