Home nestled inside of a 15,000-square foot sandstone cave in Missouri.Undergro
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Home nestled inside of a 15,000-square foot sandstone cave in Missouri.Underground abode features modern interior spaces with the beautiful unfinished sandstone walls to create an incredible example of energy-efficient architecture. Geothermal heating and smart passive design keeps the interior comfortable while completely eliminating the need for a furnace or air conditioning. Home faced foreclosure during the housing crisis and was posted on eBay with a minimum bid of $300,000.
