Rock-A-Bye Baby

We've seen all kinds of innovative housing ideas during the 20th century: geodesic domes, prefabricated housing, mobile homes, etc. But this one, I think, captures the imagination like no other: "Free Spirit Spheres." Just open the link and look at the picture, and you'll understand. I don't see this concept replacing standard family homes, but they would make for an amazing alternative to traditional vacation cabins. I can see a whole campsite full of these -- you hike for 2-3 days up a mountain and down into a valley, and finally, as you wind your way along a steep slope, you look up and see it: a spherical village in the sky. I would go. Check it out here.