Humans might not have ever reached the Earth's mantle, but they've gone deep. Here are some of the deepest man-made holes in the world.
The hole wide world: 14 images of the Earth's broken landscape - BBC Science Focus Magazine
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The 5 Most Impressive Holes on Earth - Heads Up by Scout Life
The deepest hole we have ever dug
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Photos Show the Deepest and Largest Man-Made Holes Around the World
WHAT'S AT THE BOTTOM OF THE DEEPEST HOLE ON EARTH?
the biggest ditch the biggest|TikTok Search
Photos Show the Deepest and Largest Man-Made Holes Around the World