Tourists visit the Temple of Heaven during the National Day and Mid-Autumn Festival holiday in Beijing, capital of China, Oct. 4, 2020. (Xinhua/Lu Peng)

Tourists visit the Temple of Heaven during the National Day and Mid-Autumn Festival holiday in Beijing, capital of China, Oct. 4, 2020. (Xinhua/Lu Peng)

Children jump for a group photo in front of the Temple of Heaven during the National Day and Mid-Autumn Festival holiday in Beijing, capital of China, Oct. 4, 2020. (Xinhua/Lu Peng)

Tourists visit the Temple of Heaven during the National Day and Mid-Autumn Festival holiday in Beijing, capital of China, Oct. 4, 2020. (Xinhua/Lu Peng)

Tourists visit the Temple of Heaven during the National Day and Mid-Autumn Festival holiday in Beijing, capital of China, Oct. 4, 2020. (Xinhua/Lu Peng)