TIL In China more than 40 million people live in caves 2il.org Submitted by likessvenska t3_ygxkzv on October 29, 2022 at 10:59 PM in todayilearned 55 comments 232
mac-not-a-bot t1_iube2o5 wrote on October 30, 2022 at 12:58 AM FTA - A link back to a Wikipedia article: https://en.wikipedia.org/wiki/Yaodong Permalink 29
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