What is the purpose of this building? Looks almost like a hangar for small aircraft. (For those following this discussion, you have to click on the "inverted building" link of photos.) The text below the photos suggests it started as a "barn project," which may be why the extended garage features a tractor at one end. Very interesting set up and interesting house. I'd like to see more photos of the interior in addition to the mandatory (given the hosting website) photos of the copper (which I like).