If you have your own building specifications, you don’t have to worry that metal buildings will not be able to comply with your requirements. When you contact your metal building supplier, make sure that you hand them your floor plan so that they would know exactly what you need. Metal buildings that are being produced nowadays uses state-of-the art technology and uses clear span or open spam frames so that no support columns are required. Thus, when your metal building is finished, you have an interior that is obstacle free and it’s up to you to decide on how you want your floor or building compartmentalized or divided.

Tesla earthquake machine came close

"He put his little vibrator in his coat-pocket and went out to hunt a half-erected steel building. Down in the Wall Street district, he found one&endash;ten stories of steel framework without a brick or a stone laid around it. He clamped the vibrator to one of the beams, and fussed with the adjustment until he got it.



Tesla said finally the structure began to creak and weave and the steel-workers came to the ground panic-stricken, believing that there had been an earthquake. Police were called out. Tesla put the vibrator in his pocket and went away. Ten minutes more and he could have laid the building in the street. And, with the same vibrator he could have dropped the Brooklyn Bridge into the East River in less than an hour."

http://www.excludedmiddle.com/earthquake.htm

I'd be more worried about trolls, orcs or Cthulu down in those tunnels...