One indigenous architecture I have always admired is the pyramids. Pyramids can serve as a model to our modern day society because they were efficiently run. Everyone was able to walk to anywhere in the village, and everything they needed was there available for the people. They incorporated a whole city into a small area, because of this they wasting less land. Population density has an impact on our resources because when then density is high it puts a strain on our resources in urban areas.
Rural areas have a low popuation density, and therefore are more abundant in resources.
We must learn to allocate those extra resources to people in the urban areas. Also urban communities tend to use a lot of land and develop on it. Where as rural areas use the land for its natural resources, and live and work off the land. One indigenous architecture I have always admired is the pyramids.