Aerial photo taken on July 20, 2018 shows the scenery of Pingyao, north China's Shanxi Province.

Pingyao is a tourist attraction located about 600 kilometers southwest of Beijing, capital of China, with a history dating back some 2,700 years. Its old town is famous for its well-preserved city walls and was added to the UNESCO World Heritage Site List in 1997.

A tourist visits Pingyao, north China's Shanxi Province, July 20, 2018.

Pingyao is a tourist attraction located about 600 kilometers southwest of Beijing, capital of China, with a history dating back some 2,700 years. Its old town is famous for its well-preserved city walls and was added to the UNESCO World Heritage Site List in 1997.

Aerial photo taken on July 20, 2018 shows the scenery of Pingyao, north China's Shanxi Province.

Aerial photo taken on July 19, 2018 shows the scenery of Pingyao, north China's Shanxi Province.

Pingyao is a tourist attraction located about 600 kilometers southwest of Beijing, capital of China, with a history dating back some 2,700 years. Its old town is famous for its well-preserved city walls and was added to the UNESCO World Heritage Site List in 1997.

Tourists watch the performance in Pingyao, north China's Shanxi Province, July 20, 2018. (Photos: Xinhua)

Aerial photo taken on July 19, 2018 shows tourists visiting Pingyao, north China's Shanxi Province.

Pingyao is a tourist attraction located about 600 kilometers southwest of Beijing, capital of China, with a history dating back some 2,700 years. Its old town is famous for its well-preserved city walls and was added to the UNESCO World Heritage Site List in 1997.