My city will be built around nature, so as not to do as much damage. So it won't have blocks, but will be arranged randomly, avoiding big areas dense with trees and wildlife. Also, there would be a center however, where all the convenient places are so the harm to nature is confined to a space, rather than everything being spread far out. Any buildings and utilities used in everyday life would be there, and things such as waste and water and electricity would be near an area away from wildlife, to try to keep from damaging too much in the environment. This will limit urban growth and hopefully slow it down for the future.