Guardian of Dunhuang murals shares secrets of heritage protection
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        In 366 AD in Dunhuang, China, the monk Lezun excavated the first cave that comprises the Mogao Grottoes. Protecting the Dunhuang murals is now a race against time.
Let the guardian of the murals share secrets of heritage protection and tell you about how people use their knowledge and actions to ensure this common heritage of mankind will last.
 
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