Thomas Heatherwick Studio was commissioned to create this major work for a spectacular 30-metre-high vertical void in the NW corner of our international headquarters. Consisting of 150 000 specially processed glass spheres, suspended on almost one million metres of fine stainless steel wire, the sculpture glows with a constantly shifting rainbow of colours. This effect was created through a unique process of sandwiching reflective ‘dichroic’ film within the glass. Bleigiessen - ‘lead-guessing’ - is a New Year’s Eve activity in central Europe. Lead is poured into water, producing extraordinary shapes from which your fortune can be predicted for the coming year.