Backbencher

So, I was watching Animal Planet, and they had a show about the most extreme houses, but anyway, they mentioned a town in Australia known as Coober Pedy. Half of this town is made of underground houses. The people living here create their own natural air conditioning systems that keep their homes about 77 degrees even though they live in the desert. I thought it was pretty cool. I found a website on it if anyone wants to check it out. The adress is http://www.opalcapitaloftheworld.com.au/ Enjoy!