United States houses display as though ground growth of sculpture

This is not a new idea, but is most well known, this is a light outdoor sculpture, built in 1950, stands in the United States a Berkeley Hills homes, composed by a large number of metal triangle, and on the ground have also done a triangular profile of delimited, it ties to the surface, it won't be long before there is grass growth along the triangular outline, like a green triangle spread biological up, internal lighting for night more wonderful, unique beauty.