If you have ever had the opportunity to visit a Straw-bale house you may have see something the owner called "The Wall of Truth". This is usually a place in the house that is framed to show the truth that the house is indeed made of straw. 
As building materials go, few things are more versatile, inexpensive and forgiving as straw-bales. This makes them ideal for owner-builders who may lack experience, cash or both. Bales can be formed into curved walls and arches, they can be notched, gouged, cut in half, split in half and if they still don't fit they can be persuaded with 'bale whackers' - a square block of wood mounted on a wooden handle.http://www.thefarm.org/charities/i4at/lib2/strwbale.htm
The style, size, floor plans of a Straw-Bale vary like any other house. But the bales offer opportunity for imagination. As the picture of the cat shows the window sills and walls are thicker and provide R-35 to R-40 insulation. They also force you to decorate a little differently. One house I visited had shudders, wooden fence panels on hinges or large plants providing privacy.

Bales come with two-wires or three-wires (or strings) holding them together. Two-wire bales weigh about 50 pounds and three-wire bales, 75-100 pounds. Two-wire bales are usually 14 inches high, 18 inches wide, and 32-40 inches long (typical in Texas). Three-wire bales are 16-17 inches high, 23-24 inches wide, and 42-47 inches long (typical in western states).
Source : http://www.greenbuilder.com/sourcebook/strawbale.html
Reasons build or buy a Straw-Bale House
- Energy efficiency;
- Affordability;
- Resource-efficient building technology;
- Use of local materials;
- Community involvement and use of local labor;
- Cultural compatibility; and
- Design simplicity, adaptability, and comfort.
Source: http://www.eere.energy.gov/buildings

Dena, Nice photos! I am wondering if it would effect hay fever sufferers?
kk