Viral photo shows second-deepest open-pit mine in world, not scary attempt to reach 'through Earth's crust' - Africa Check
Earth Observatory of Singapore - At just nine inches in diameter, the Kola Superdeep Borehole is the deepest hole that humans have ever dug. It took 20 years to drill to a
Kola Superdeep Borehole - Wikipedia
Was The 'Deepest Hole on Earth' Sealed After Finding '2 Billion Year Old Fossil'? | Snopes.com
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What was found in the deepest man-made hole? - Quora
How Deep Is the Deepest Hole in the World? | Scientific American
World's deepest hole dubbed 'well to HELL' plunges 40,000 feet – and is only covered by 'rusty Soviet metal lid' | The Sun
Scientists Dug the Deepest Hole But Something Broke Their Drill - YouTube
Hitting the Books: The mad science behind digging really huge holes
Daily Memes - World's Deepest man made hole Kola Superdeep borehole(Russia) is the deepest hole in the world. It was the soviet union project to reach the deepest point of the earth.
7 of the Deepest Holes Humanity Ever Dug
Top 10 Deepest Holes In The Earth | Articles on WatchMojo.com
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Why Did the Russians Seal Up the Deepest Hole in the World? | HowStuffWorks
The World's Deepest Pits | Condé Nast Traveler
Russian diamond mine is the worlds second largest hole
World's deepest hole dubbed 'well to HELL' plunges 40,000 feet – and is only covered by 'rusty Soviet metal lid' | The Sun
Drilling the Deepest Hole in The World Was Extremely Hard | by Sean Kernan | Lessons from History | Medium
The Deepest Hole Ever Made Was Covered Up And Abandoned Forever For One Startling Reason - YouTube | Советский союз, Колодец, Наука
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Kola Superdeep Borehole – Murmansk, Russia - Atlas Obscura
