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World's Deepest Cave
(
wondermondo.com
)
2 points
by
11thEarlOfMar
on Feb 19, 2024
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past
Airdevronsix icefall (2014)
(
wondermondo.com
)
5 points
by
arethuza
on April 3, 2020
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past
Xiaozhai tiankeng: The largest sinkhole in the world
(
wondermondo.com
)
2 points
by
Mz
on Aug 26, 2014
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past
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