earth ship

so i saw an earth ship the other day. had no clue what even an earth ship was until my neighbor took me over to see it and explained it to me. basically it is a solar powered house made of natural and recycled materials. this earth ship was made of earth-filled tires and also glass bottles joined together by concrete. the shape of the house looked like a horseshoe. it was pretty amazing to see. unfortunately i didn't get to go inside but i tried to peak through the windows and saw glass bottles everywhere and plants as well. the earth ship was actually for rent. i don't really know who would want to stay in this sort of house but then again it is pretty cool. this house would probably be for someone who is very cautious about their ecological footprint on the earth. i don't think i would stay in it, would you?