I find the hollow earth idea fascinating,,,implausible but,,,intriguing to read the mind-bends tho,,,

The idea that the Earth is hollow is an outlandish one, on a par, many would argue, with a belief that the Earth is flat. There isn't much in the way of evidence, except for some unverifiable stories and a few highly contested photos that purport to show the hole at the North Pole. (There is supposedly a matching hole at the South Pole.) But the notion of a hollow Earth has persisted over the ...
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