The Potala Palace in Lhasa, Southwest China's Tibet autonomous region, is pictured surrounded by golden autumn foliage on Oct 16, 2019. The palace is a must-visit place for tourists in Lhasa. [Photo/Xinhua]

The Potala Palace in Lhasa, Southwest China's Tibet autonomous region, is pictured against blue skies and floating clouds on Oct 16, 2019. [Photo/Xinhua]

The Potala Palace in Lhasa, Southwest China's Tibet autonomous region, is pictured surrounded by golden autumn foliage on Oct 16, 2019. [Photo/Xinhua]

The Potala Palace in Lhasa, Southwest China's Tibet autonomous region, is pictured against blue skies on Oct 16, 2019. [Photo/Xinhua]