TIL that the Longyou Caves, a mysterious network of man-made caves over 2,000 years old, were never recorded in any historical documents and were only rediscovered by local farmers in 1992.
https://en.wikipedia.org/wiki/Longyou_Caves
Submitted July 09, 2023 at 08:46PM by Beautiful_Dream_1129
via reddit https://www.reddit.com/r/todayilearned/comments/14vhmnk/til_that_the_longyou_caves_a_mysterious_network/?utm_source=ifttt
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