The Potala Palace is a world-class cultural heritage site, the world's highest-altitude and best-preserved palace complex of its kind. It serves as a historical example of the governance of frontier regions by dynasties in China's Central Plains and a testament to the exchanges, interactions and integration among China's various ethnic groups. Throughout the long history of the Potala Palace, elements including politics, religion, culture and art have intertwined, creating a series of legendary stories.