National
A few decades ago, cave homes in China were simple dark affairs with tiny doors like this one. (Tim Johnson/MCT)
MCT
The cave where Wang Aifang lives is more than 25 feet deep, with a large brick bed at the end that is heated by embers placed below it. (Tim Johnson/MCT)
MCT
Apart from traditional cave homes, some Chinese live in homes with stone slab facades and earthen berms covering the sides. The roof also has earth on it. (Tim Johnson/MCT)
MCT
The cave home where Li Zhanjun and Wang Aifang, right, live was originally excavated by his grandfather many decades ago. A quilt covering the entrance bears the Chinese characters that mean "Welcome Fortune." (Tim Johnson/MCT)
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