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From Underground Cities to Sinister Subterranean Tours

By: Meghan Young - Published: Oct 30, 2009
When I was a child, I remember being deathly afraid of our underground parking garage. I was so sure that at any moment the condo building would collapse around us. To my child-like amazement, it never happened.

As an adult, I’ve grown to appreciate underground innovations. Some of the most interesting things can be found down below. Don’t know what I mean? Then check out this cluster. Stats for 24 Underground Innovations Trending: Older & Mild
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