*above: This house with grass roof is starting to grow a small birch tree.
Is there is anything more green than these houses with grass roofs? Unless they are houses with forest roofs! ha-ha. They are called Icelandic Turf Houses. These photos are taken on North Islands of Scotland and Iceland. Apparently, these turf houses offer superior insulation compared to buildings made solely out of wood or stone. One of the reasons these houses started their existence is that there was not a lot of good timber in Iceland and it was difficult to obtain other construction materials. However, Iceland did have a large amount of turf..
*above: village with grass roofs: