
People visit the Great Wall to celebrate the New Year in Beijing, capital of China, Jan. 1, 2020. (Xinhua/Ju Huanzong)

People visit the Great Wall to celebrate the New Year in Beijing, capital of China, Jan. 1, 2020. (Xinhua/Ju Huanzong)

People visit the Great Wall to celebrate the New Year in Beijing, capital of China, Jan. 1, 2020. (Xinhua/Ju Huanzong)

People visit the Great Wall to celebrate the New Year in Beijing, capital of China, Jan. 1, 2020. (Xinhua/Ju Huanzong)

People visit the Great Wall to celebrate the New Year in Beijing, capital of China, Jan. 1, 2020. (Xinhua/Ju Huanzong)

People visit the Great Wall to celebrate the New Year in Beijing, capital of China, Jan. 1, 2020. (Xinhua/Ju Huanzong)

People visit the Great Wall to celebrate the New Year in Beijing, capital of China, Jan. 1, 2020. (Xinhua/Ju Huanzong)

People visit the Great Wall to celebrate the New Year in Beijing, capital of China, Jan. 1, 2020. (Xinhua/Ju Huanzong)

People visit the Great Wall to celebrate the New Year in Beijing, capital of China, Jan. 1, 2020. (Xinhua/Ju Huanzong)

People visit the Great Wall to celebrate the New Year in Beijing, capital of China, Jan. 1, 2020. (Xinhua/Ju Huanzong)

People visit the Great Wall to celebrate the New Year in Beijing, capital of China, Jan. 1, 2020. (Xinhua/Ju Huanzong)

People visit the Great Wall to celebrate the New Year in Beijing, capital of China, Jan. 1, 2020. (Xinhua/Ju Huanzong)

Aerial photo taken on Jan. 1, 2020 shows tourists watching the sunrise during a celebration event marking the New Year's Day at Mutianyu section of the Great Wall in Beijing, capital of China. (Xinhua/Ding Hongfa)

Tourists watch the sunrise during a celebration event marking the New Year's Day at Mutianyu section of the Great Wall in Beijing, capital of China, Jan. 1, 2020. (Xinhua/Ding Hongfa)

Aerial photo taken on Jan. 1, 2020 shows the scenery of Mutianyu section of the Great Wall in Beijing, capital of China. (Xinhua/Ding Hongfa)

Tourists watch the sunrise during a celebration event marking the New Year's Day at Mutianyu section of the Great Wall in Beijing, capital of China, Jan. 1, 2020. (Xinhua/Ding Hongfa)

Aerial photo taken on Jan. 1, 2020 shows the scenery of Mutianyu section of the Great Wall in Beijing, capital of China. (Xinhua/Ding Hongfa)

Tourists watch the sunrise during a celebration event marking the New Year's Day at Mutianyu section of the Great Wall in Beijing, capital of China, Jan. 1, 2020. (Xinhua/Ding Hongfa)

Actors perform during a celebration event marking the New Year's Day at Mutianyu section of the Great Wall in Beijing, capital of China, Jan. 1, 2020. (Xinhua/Ding Hongfa)