Tibetannet

Cellphone photo taken on June 2, 2019 shows a view of solar halo over Lhasa, southwest China's Tibet Autonomous Region. (Xinhua/Purbu Zhaxi)

Cellphone photo taken on May 29, 2019 shows a restaurant table with the Potala Palace in the background in Lhasa, southwest China's Tibet Autonomous Region. (Xinhua/Purbu Zhaxi)

Cellphone photo taken on May 3, 2019 shows a worker preparing Tibetan noodles at a Tibetan restaurant in Lhasa, southwest China's Tibet Autonomous Region. (Xinhua/Purbu Zhaxi)

Cellphone photo taken on April 28, 2019 shows a rock band of the Tibetan ethnic group performing at a bar in Lhasa, southwest China's Tibet Autonomous Region. (Xinhua/Purbu Zhaxi)

Cellphone photo taken on May 24, 2019 shows the Potala Palace with a snow mountain in the background in Lhasa, southwest China's Tibet Autonomous Region. (Xinhua/Purbu Zhaxi)

Cellphone photo taken on May 14, 2019 shows a worker walking down a ladder at a temple in Lhasa, southwest China's Tibet Autonomous Region. (Xinhua/Purbu Zhaxi)

Cellphone photo taken on April 30, 2019 shows the golden roofs of the Jokhang Temple in Lhasa, southwest China's Tibet Autonomous Region. (Xinhua/Purbu Zhaxi)

Cellphone photo taken on June 4, 2019 shows the Potala Palace during sunset in Lhasa, southwest China's Tibet Autonomous Region. (Xinhua/Li Xin)

Cellphone photo taken on June 16, 2019 shows a Khampa Tibetan man sitting at a park in Lhasa, southwest China's Tibet Autonomous Region. (Xinhua/Purbu Zhaxi)

Cellphone photo taken on June 11, 2019 shows prayer flags on a mountain in Lhasa, southwest China's Tibet Autonomous Region. (Xinhua/Purbu Zhaxi)