![]() Since the end of last month it has been possible for people around the world to watch online 3-D views of the caves, and virtual reality devices can be used to view the images.Ĭameramen use scaffolding to capture the images on the irregular shaped roof Before beginning their tour proper, visitors need to go to Mogao Grottoes Visitor Center to watch two 20-minute high-definition movies about the grottoes, including a film about the seven most valuable caves in terms of artistic achievement. In an effort to minimize the risk of damage, visitors have had to apply online to visit the caves since last July, and the number of visitors is limited to 6,000 a day. Such damage happened in the 1950s and 1960s when artists tried to make facsimiles of murals, when archaeologists tried to survey and map the caves, or in recently years when the growing number of tourists increased the quantity of carbon dioxide and humidity and the exposure of the relics to light or other elements that can speed up their deterioration. ![]() A digital and immersive experience of the cave. ![]()
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