The 'living roof' at The CA Academy of Sciences

wow...it looks amazing. we have a few eco builings here in wales.

Sandra- It's a clever and useful idea, isn't it :)

David built an underground home for a client....it is still there. cozy in the winter and cool in the summer.

They are native wild flowers Marguerite, so no mowing needed.
Catfinch- At my old place I used to have an underground room and the temperature was nice down there.