Invincible Against Time and Tide.

CULTURE Putting minuscule flakes of paint back on a painting more than 1,000 years ago. Digital database Dunhuang used to be a strategic point along the ancient Silk Road and traces of exchanges between different civilizations can be found in the mottled murals and Buddhist statues of the iconic Mogao Grottoes. These are some of the tasks Su Bomin, a "doctor" of murals, does daily during his round of the famous Dunhuang murals, the Buddhist wall paintings on hundreds of grottoes in Dunhuang, Gansu Province, thought to have been created between the 4th and 14th centuries on the Gobi Desert. [Extracted from the article]