America's Secret Machine! They Drill The Mountain In One Day!

America's Secret Machine! They Drill The Mountain In One Day! You won't believe that America has been harboring a secret machine that can drill through mountains in just one day, leaving everyone in awe of its incredible power. After the disappointing failure of the tunnel boring machine Bertha, there was a drastic change in the era of machinery. Join us as we uncover these secret machines that can do wonders.