Travelers climbing the "sky ladder." (Courtesy Qixing Adventure) China has 3.7 million square miles of land to explore. But more and more young Chinese travelers are opting to see their country from ...

China has 3.7 million square miles of land to explore. But more and more young Chinese travelers are opting to see their country from the sky. The newest of these not-for-the-faint-of-heart structures ...

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