Roofs used to be those inaccessible areas covered in tar and mechanical equipment; now they are the fifth facade, a major visual element in the building. Renderings that used to be shot from ground level are now all bird's-eye views. You may not be able to find the entrance but it sure looks great from a drone. (I am thinking of Zaha's latest)
However some architects are taking advantage of the green roof to do entirely new building forms, where the roof comes down to meet the ground and become part of the landscape. We have seen it with BIG's school in Denmark and my favorite,Designboom shows the Undulating Science Hills in Komatsu, by the Urban Architecture Office. It works much like the unbuilt Rimini Seascape, in that you can walk up and over the building.
A public rooftop garden spread across the upper surface both insulates the entirety of the structure and integrates the architecture of the building with the surrounding natural landscape. The flowing topography also serves as an architectural device to control light and direct rainwater for reuse as planting irrigation.
Lots more photos in Designboom.
It really does remind me of this.
More in this series: