Their technical solution reposes on alternating cladding of polished stainless steel and grey-lacquered metal. At the same time as the ITER buildings reflect the changing skies and pick up the hues of the passing seasons, the polished, sharp quality of their exteriors conveys something of the high-tech nature of the activities they harbour.

In order to check the feasibility of installation and to have the final choices validated by the architects, a mockup of the planned cladding has been erected at the south corner of the Assembly Building. A few square metres of the building's metal structure have been covered with the two types of alternating cladding, allowing us to imagine what the completed building will look like.

For the moment, the mirror-like surfaces only reflect the shapes of the trucks and cranes that surround the building.

But we have an indication of what the final result will be—and it's quite impressive.