Free Spirit Spheres- Okay. A new cool in 'treehouse' designs. This suspended sphere can be placed anywhere you can imagine and the inside is like a round bedroom though I didn't see a bathroom anywhere.

The best tree house is still the one you can put in your back yard. I love the idea of one and have a desire for one. Here I try to bring together some of the neat pictures related to unusual tree house designs.

Fab Tree Hab living tree-A method of taking trees and bio-forming them into a sustainable home.

Teton Tree House-Visit this unique home. Started off as a little cabin for the kids and grew into this wonderful Bed and Breakfast in Wyoming.

Treescraper-William McDonough's-What would you call a skyscraper that works like a tree, makes oxygen, distills water, produces energy, and changes with the seasons?