Tiago Viegas’ Crea Building Challenge design, with its terraced living rooftops and pyramidal shape, looks like a modern version of the ancient structures that graced Mesopotamia thousands of years ago. This creation, made in conjunction with Felipe Araújo and Lucas Leite, really pushes the boundaries of modern green design.

Click through the gallery above to see more images of Felipe Araújo, Lucas Leite and Tiago Viegas’ Crea Building Challenge, and keep clicking for more gorgeous eco architecture.