An aerial view of Shaobo Town in Yangzhou City, East China’s Jiangsu Province, June 1, 2016. With a history stretching back more than 1,600 years, the town was once an important business hub on China's Grand Canal, the longest artificial waterway in the world at the time, which was placed on the UNESCO World Heritage list in 2014. (Photo: China News Service/Yang Bo)

An aerial view of Shaobo Town in Yangzhou City, East China’s Jiangsu Province, June 1, 2016. With a history stretching back more than 1,600 years, the town was once an important business hub on China's Grand Canal, the longest artificial waterway in the world at the time, which was placed on the UNESCO World Heritage list in 2014. (Photo: China News Service/Yang Bo)

An aerial view of Shaobo Town in Yangzhou City, East China’s Jiangsu Province, June 1, 2016. With a history stretching back more than 1,600 years, the town was once an important business hub on China's Grand Canal, the longest artificial waterway in the world at the time, which was placed on the UNESCO World Heritage list in 2014. (Photo: China News Service/Yang Bo)

An aerial view of Shaobo Town in Yangzhou City, East China’s Jiangsu Province, June 1, 2016. With a history stretching back more than 1,600 years, the town was once an important business hub on China's Grand Canal, the longest artificial waterway in the world at the time, which was placed on the UNESCO World Heritage list in 2014. (Photo: China News Service/Yang Bo)

An aerial view of Shaobo Town in Yangzhou City, East China’s Jiangsu Province, June 1, 2016. With a history stretching back more than 1,600 years, the town was once an important business hub on China's Grand Canal, the longest artificial waterway in the world at the time, which was placed on the UNESCO World Heritage list in 2014. (Photo: China News Service/Yang Bo)

An aerial view of Shaobo Town in Yangzhou City, East China’s Jiangsu Province, June 1, 2016. With a history stretching back more than 1,600 years, the town was once an important business hub on China's Grand Canal, the longest artificial waterway in the world at the time, which was placed on the UNESCO World Heritage list in 2014. (Photo: China News Service/Yang Bo)

An aerial view of Shaobo Town in Yangzhou City, East China’s Jiangsu Province, June 1, 2016. With a history stretching back more than 1,600 years, the town was once an important business hub on China's Grand Canal, the longest artificial waterway in the world at the time, which was placed on the UNESCO World Heritage list in 2014. (Photo: China News Service/Yang Bo)