This photo taken with unmanned aerial vehicle on May 7, 2016 shows wooden stilted buildings in the Anma village in Yangxi township of Sanjiang Dong autonomous county, south China’s Guangxi Zhuang autonomous region. Sanjiang Dong autonomous county, located in the north of Guangxi, is renowned in the world for its large numbers of drum towers, wind and rain bridges and traditional buildings of Dong ethnic group.[Photo/Xinhua]

This photo taken with unmanned aerial vehicle on Feb. 2, 2016 shows the snow scenery of the Gaoyou village in Linxi town of Sanjiang Dong autonomous county, south China’s Guangxi Zhuang autonomous region. Sanjiang Dong autonomous county, located in the north of Guangxi, is renowned in the world for its large numbers of drum towers, wind and rain bridges and traditional buildings of Dong ethnic group.[Photo/Xinhua]

This photo taken with unmanned aerial vehicle on March 8, 2016 shows the Tangshui village in Bajiang town of Sanjiang Dong autonomous county, south China’s Guangxi Zhuang autonomous region. Sanjiang Dong autonomous county, located in the north of Guangxi, is renowned in the world for its large numbers of drum towers, wind and rain bridges and traditional buildings of Dong ethnic group.[Photo/Xinhua]

Photo taken on March 25, 2016 shows a banquet in Linxi town of Sanjiang Dong autonomous county, south China’s Guangxi Zhuang autonomous region. Sanjiang Dong autonomous county, located in the north of Guangxi, is renowned in the world for its large numbers of drum towers, wind and rain bridges and traditional buildings of Dong ethnic group.[Photo/Xinhua]

This photo taken with unmanned aerial vehicle on March 25, 2016 shows the Chengyang wind and rain bridge in Linxi town of Sanjiang Dong autonomous county, south China’s Guangxi Zhuang autonomous region. Sanjiang Dong autonomous county, located in the north of Guangxi, is renowned in the world for its large numbers of drum towers, wind and rain bridges and traditional buildings of Dong ethnic group.[Photo/Xinhua]