The story of the hand-dug well:
<a href="https://www.mybrightonandhove.org.uk/places/utilities/woodingdean-well/woodingdean-well" rel="nofollow">https://www.mybrightonandhove.org.uk/places/utilities/woodin...</a>
What's at 12,000 meters deep? What are they afraid of?
Explain xkcd has links to the Wikipedia articles for each hole.<p><a href="https://www.explainxkcd.com/wiki/index.php/3266:_Holes" rel="nofollow">https://www.explainxkcd.com/wiki/index.php/3266:_Holes</a>
I had never heard of Mponeng Gold Mine. Terrifying.
I forget how cool Lake Baikal is until it shows up randomly and I'm reminded to go look it up again.
Lake Baikal sediment layer almost as deep as the Mariana Trench:<p><a href="https://en.wikipedia.org/wiki/Lake_Baikal#Geography_and_hydrography" rel="nofollow">https://en.wikipedia.org/wiki/Lake_Baikal#Geography_and_hydr...</a><p>[...] <i>and below this lies some 7 km (4.3 mi) of sediment, placing the rift floor some 8–11 km (5.0–6.8 mi) below the surface, the deepest continental rift on Earth.</i>
What are all those oops for?
Lake Peigneur was swallowed by a whirlpool like in an anime, in a sad drilling that took away entire boats. The salt geologic bubble under the lake can absorb gigantic volumes of water, and a drilling for the exploitation of petrol initiated the hole.<p><a href="https://en.wikipedia.org/wiki/Lake_Peigneur" rel="nofollow">https://en.wikipedia.org/wiki/Lake_Peigneur</a>
collapses and floods it looks like. Here's the oops for the Pantai Remis mine<p><a href="https://www.youtube.com/watch?v=H6Ma0SVjMHA" rel="nofollow">https://www.youtube.com/watch?v=H6Ma0SVjMHA</a>
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