The World Beneath Our Feet - S6.E1
Humanity has launched satellites into outer space and submarines to the ocean floor, but the ground below Earth's surface remains shrouded in mystery. Are there profound secrets buried beneath layers of rock, or hidden in vast caves? Can the subterranean world below shed light on humanity's past, or even its future?
The World Beneath Our Feet - S6.E1
October 6, 2023
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