Solisterra straw-bale house

On the picture above one should see the highest straw-bale building in the world. It didn't make to the Guinness World Records Book, as there is one in Sweden which has been marked as the highest, though in that case the building stands on metal construction, while on this one you can see, it is all made of wood and pure straw-bales. The construction is filled with bales, then wrapped with chicken wire and in the end all is sewed together for lasting build. It is warm when it is winter and it is cool when it is warm in summer. Smells the best, too.
Read more from Wikipedia, the link is below, or go and visit Solisterra in Quebec.

Straw-bale construction is a building method that uses bales of straw (commonly wheat, rice, rye and oats straw) as structural elements, building insulation, or both. This construction method is commonly used in natural building or "green" construction projects.

Advantages of straw-bale construction over conventional building systems include the renewable nature of straw, cost, easy availability, and high insulation value. Disadvantages include susceptibility to rot and high space requirements for the straw itself. (Wikipedia.org)