Photo taken on June 27, 2018 shows the Palace Museum in Beijing. Beijing sees blue sky as high temperatures grill the city on June 27, 2018. The heat waves will last six days. (Photos: VCG)

Photo taken on June 27, 2018 shows the Palace Museum in Beijing, capital of China. Beijing sees blue sky as high temperatures grill the city on June 27, 2018. The heat waves will last six days.

Photo taken on June 27, 2018 shows the Palace Museum in Beijing, capital of China. Beijing sees blue sky as high temperatures grill the city on June 27, 2018. The heat waves will last six days. 

Photo taken on June 27, 2018 shows the Palace Museum in Beijing, capital of China. Beijing sees blue sky as high temperatures grill the city on June 27, 2018. The heat waves will last six days. 

Photo taken on June 27, 2018 shows the Palace Museum in Beijing, capital of China. Beijing sees blue sky as high temperatures grill the city on June 27, 2018. The heat waves will last six days.