At the summit of a remote mountain, a narrow pipe disappeared straight into the rock. When a camera was lowered inside, the footage revealed unexpected depth and conditions that suggested the ...
This transcript was created using speech recognition software. While it has been reviewed by human transcribers, it may contain errors. Please review the episode audio before quoting from this ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback