"$300,000 is the starting bid on this eBay listing for a three-bedroom home built in a 15,000 sqft cave in Festus, MO, formerly a roller-rink/concert venue that entertained the MC5, Ike and Tina Turner and Ted Nugent. Sounds like a hell of a place to live (and you gotta feel for the family that's losing their dream). It's got three freshwater springs and there are fourteen waterfalls on the property. Yowza." - Steven Perez from Bookmarklet