Some interesting underground projects...
http://www.swissinfo.ch/eng/bunkers-for-all/995134
http://newsvote.bbc.co.uk/1/hi/programmes/from_our_own_correspondent/6347519.stm
http://freshome.com/2009/12/05/incredible-underground-residence-in-switzerland/
http://www.lac-souterrain.com/index_eng.html
http://www.bbc.co.uk/news/world-europe-11548845
http://en.wikipedia.org/wiki/Gotthard_Base_Tunnel
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