The Shed’s Bloomberg Building at Hudson Yards, New York, by Diller Scofidio + Renfro, Rockwell Group, 2019. The welded air-filled ethylene tetrafluoroethylene (ETFE) bubbles, manufactured by Vector Foiltec, create a lightweight insulated structure. The shell, known as McCourt, moves on rails driven by giant wheels and doubles the usable indoor space of the building. The unique colour effect comes from a combination of a printed pattern on the top layer, a white middle layer with 29% opacity, and a transparent bottom layer. Image Vector Foiltec, Timothy Schenck.