Photo taken on July 26, 2020 shows the landscape of earth forest in Zanda County of Ngari Prefecture, southwest China's Tibet Autonomous Region. Zanda is famous for the unique landscape of earth forest where lie the ruins of the palace of the Gurge Kingdom dating back to the 9th century. (Xinhua/Zhan Yan)

Aerial photo taken on July 26, 2020 shows the landscape of earth forest in Zanda County of Ngari Prefecture, southwest China's Tibet Autonomous Region. Zanda is famous for the unique landscape of earth forest where lie the ruins of the palace of the Gurge Kingdom dating back to the 9th century. (Xinhua/Zhan Yan)

Aerial photo taken on July 26, 2020 shows the landscape of earth forest in Zanda County of Ngari Prefecture, southwest China's Tibet Autonomous Region. Zanda is famous for the unique landscape of earth forest where lie the ruins of the palace of the Gurge Kingdom dating back to the 9th century. (Xinhua/Zhan Yan)

Aerial photo taken on July 26, 2020 shows the landscape of earth forest in Zanda County of Ngari Prefecture, southwest China's Tibet Autonomous Region. Zanda is famous for the unique landscape of earth forest where lie the ruins of the palace of the Gurge Kingdom dating back to the 9th century. (Xinhua/Zhan Yan)

Aerial photo taken on July 26, 2020 shows the landscape of earth forest in Zanda County of Ngari Prefecture, southwest China's Tibet Autonomous Region. Zanda is famous for the unique landscape of earth forest where lie the ruins of the palace of the Gurge Kingdom dating back to the 9th century. (Xinhua/Zhan Yan)