When I first saw this picture I thought it was an alĂ­en world city from a sci-fi movie. Then I learned it is real: It's the city of Yangshuo, in China.

According to National Geographic's spectacular feature Empire of Rock:

It was a sleepy village two decades ago, when foreign climbers and cavers began frequenting nearby formations. Today domestic tourists vastly outnumber foreign visitors.

Photograph by Carsten Peter, National Geographic.

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