Every September in the Tibetan calendar, after the rainy season in Tibet, the Potala Palace welcomes its annual exterior wall paint maintenance. The annual renovation is not only for a better appearance, but also to protect the ancient architectural complex. (Photos: Chinanews.com, compiled by An Bowen)

Staff paint the exterior wall of the Potala Palace. Every September in the Tibetan calendar, after the rainy season in Tibet, the Potala Palace welcomes its annual exterior wall paint maintenance. The annual renovation is not only for a better appearance, but also to protect the ancient architectural complex.

Staff paint the exterior wall of the Potala Palace. Every September in the Tibetan calendar, after the rainy season in Tibet, the Potala Palace welcomes its annual exterior wall paint maintenance. The annual renovation is not only for a better appearance, but also to protect the ancient architectural complex.

Local residents help carry the paint used to paint the Potala Palace. Every September in the Tibetan calendar, after the rainy season in Tibet, the Potala Palace welcomes its annual exterior wall paint maintenance. The annual renovation is not only for a better appearance, but also to protect the ancient architectural complex.

Local residents help carry the paint used to paint the Potala Palace. Every September in the Tibetan calendar, after the rainy season in Tibet, the Potala Palace welcomes its annual exterior wall paint maintenance. The annual renovation is not only for a better appearance, but also to protect the ancient architectural complex.

Staff paint the exterior wall of the Potala Palace. Every September in the Tibetan calendar, after the rainy season in Tibet, the Potala Palace welcomes its annual exterior wall paint maintenance. The annual renovation is not only for a better appearance, but also to protect the ancient architectural complex.

Every September in the Tibetan calendar, after the rainy season in Tibet, the Potala Palace welcomes its annual exterior wall paint maintenance. The annual renovation is not only for a better appearance, but also to protect the ancient architectural complex.