Anyone interested in a cave home? It is up for sale on eBay. This amazing dwelling was built by an entire family as a primary residence and took five years! This 15,000 square foot cave jewel in Festus, Missouri, is a passive house that requires no heating or cooling and stays at a comfortable 67 to 75 degrees year round, with utility bills equal to an average 800 sq. foot home. The cave was a concert venue between 1960 and 1985. Ted Nugent, Bob Segar and Tina Turner are just a few of the groups that have performed there. Talk about unique!
See the eBay listing here