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Perched in the northern foothills of the Qilian Mountains, Zhangye Danxia National Geopark occupies a high, windswept shelf ...
Red sprites hover between 40 and 55 miles high. Up there, the air is thin, so electric fields can spark gigantic filaments ...
Experience the dazzling streets of Shenzhen, China in stunning 4K HDR. This nighttime walking tour reveals a city that truly ...