It's hard to miss Potala Palace, a UNESCO World Heritage Site. This grand, imposing structure stands more than 12,000 feet above sea level on Marpo-ri, or Red Hill, in the middle of central Lhasa.

Thousands of residents in Lhasa joined the work in painting the exterior walls of the Potala Palace, an annual routine "makeover" project for the UNESCO World Heritage site. [Photo by Palden Nyima ...

Travelers will find the Potala Palace at the center of Tibet’s capital city Lhasa. It was constructed in 1645 as the primary residence of the Dalai Lama. With the city already sitting at a high ...