A tour guide speaks during a live streaming tour in the Potala Palace, a UNESCO world heritage, in Lhasa, Southwest China's Tibet autonomous region, March 1, 2020. The Potala Palace, a landmark in Southwest China's Tibet autonomous region, held a live streaming tour session Sunday, the first time in its over 1,300-year history. [Photo/Xinhua]
A tour guide speaks during a live streaming tour in the Potala Palace, a UNESCO world heritage, in Lhasa, Southwest China's Tibet autonomous region, March 1, 2020. The Potala Palace, a landmark in Southwest China's Tibet autonomous region, held a live streaming tour session Sunday, the first time in its over 1,300-year history. [Photo/Xinhua]
A tour guide shows the live streaming tour to the Potala Palace, a UNESCO world heritage, in Lhasa, Southwest China's Tibet autonomous region, March 1, 2020. The Potala Palace, a landmark in Southwest China's Tibet autonomous region, held a live streaming tour session Sunday, the first time in its over 1,300-year history. [Photo/Xinhua]
A tour guide speaks during a live streaming tour in the Potala Palace, a UNESCO world heritage, in Lhasa, Southwest China's Tibet autonomous region, March 1, 2020. The Potala Palace, a landmark in Southwest China's Tibet autonomous region, held a live streaming tour session Sunday, the first time in its over 1,300-year history. [Photo/Xinhua]
