Designed by architect Juan Coll-Barreu, the headquarters building of the Basque Health Department in Bilbao, Spain, is a fantastic prism of glass and steel. The most prominent feature of the building is its polyhedral-shaped glass façade that allows light into the interior, making it a transparent, luminous space.
The façade not only meets local building code regulations, it also provides acoustic insulation for the building. The folded elements of glass in the façade create multiple views of the city and change their appearance depending on the viewing angle, the time of day and the season, demonstrating the dynamic spirit of the city.