what is the deepest man-made underground constructed structure in the world., where?

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what is the deepest man-made underground constructed structure in the world., where?

2006-11-29 16:19:45 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Engineering

3 answers

gota be South African Diamond mines

2006-11-29 16:22:18 · answer #1 · answered by lint 6 · 0⤊ 0⤋

Probably a mine.. see site below

http://hypertextbook.com/facts/2003/YefimCavalier.shtml

2006-11-30 22:05:45 · answer #2 · answered by JamieKidson 2 · 0⤊ 0⤋

i dunno for sure but id bet its a military structure and i also bet they classify how deep it really goes. but i would put my money on the Cheyenne mountain complex in Wyoming, a.k.a. NORAD.

2006-11-30 00:25:38 · answer #3 · answered by jezabella 3 · 0⤊ 1⤋