Aerial photo taken on April 3, 2019 shows the Newu Bridge in Lhasa, capital city of southwest China's Tibet Autonomous Region. Stunning aerial shots display captivating sceneries of Lhasa, which sits at an altitude of 3,650 meters above sea level. (Xinhua/Purbu Zhaxi)

Aerial photo taken on Aug. 10, 2019 shows the Potala Palace in Lhasa, capital city of southwest China's Tibet Autonomous Region. Stunning aerial shots display captivating sceneries of Lhasa, which sits at an altitude of 3,650 meters above sea level. (Xinhua/Zhang Rufeng)

Aerial photo taken on Aug. 10, 2019 shows the Jokhang Temple in Lhasa, capital city of southwest China's Tibet Autonomous Region. Stunning aerial shots display captivating scenery of Lhasa at an altitude of 3,650 meters above sea level. (Xinhua/Purbu Zhaxi)

Aerial photo taken on Aug. 10, 2019 shows the old town of Lhasa, capital city of southwest China's Tibet Autonomous Region. Stunning aerial shots display captivating sceneries of Lhasa, which sits at an altitude of 3,650 meters above sea level. (Xinhua/Li Xin)

Aerial photo taken on Aug. 10, 2019 shows the old town of Lhasa, capital city of southwest China's Tibet Autonomous Region. Stunning aerial shots display captivating sceneries of Lhasa, which sits at an altitude of 3,650 meters above sea level. (Xinhua/Li Xin)

Aerial photo taken on May 16, 2019 shows the old town of Lhasa, capital city of southwest China's Tibet Autonomous Region. Stunning aerial shots display captivating scenery of Lhasa at an altitude of 3,650 meters above sea level. (Xinhua/Zhang Rufeng)

Aerial photo taken on Aug. 10, 2019 shows the Jokhang Temple in Lhasa, capital city of southwest China's Tibet Autonomous Region. Stunning aerial shots display captivating scenery of Lhasa at an altitude of 3,650 meters above sea level. (Xinhua/Purbu Zhaxi)

Aerial photo taken on Aug. 10, 2019 shows the Jokhang Temple in Lhasa, capital city of southwest China's Tibet Autonomous Region. Stunning aerial shots display captivating scenery of Lhasa at an altitude of 3,650 meters above sea level. (Xinhua/Li Xin)

Aerial photo taken on April 3, 2019 shows the Najin Bridge in Lhasa, capital city of southwest China's Tibet Autonomous Region. Stunning aerial shots display captivating scenery of Lhasa at an altitude of 3,650 meters above sea level. (Xinhua/Jigme Dorje)