Taos

I'm in Taos, New Mexico.
I found unique buildings,
by the name of "Earthship".

Earthship Design Principles:

1) Thermal/Solar Heating & Cooling
2) Solar & Wind Electricity
3) Contained Sewage Treatment
4) Building with Natural & Recycled Materials
5) Water Harvesting
6) Food Production

Check more info.
http://www.earthship.net/