“The GSW Highrise in the Kreuzberg area of Berlin made the architects Sauerbruch and Hutton well known. The concave slab highrise of 18 floors has hundreds of windows, each with a blind colored slightly different from the next, producing a monumental composition that changes daily or even within the hour as the users of the building raise or lower them, partially or completely, as shade from the sunlight. The structures... see more