The top floor of the Telekom Headquarters houses the offices of the senior management, with a terrace reserved for them and their partners. To provide an elegant and representative access point to this area, a uniquely designed staircase was envisioned. The sculptural object features a spiral line, allowing natural light to filter through the spindle space and illuminate the level below. The same design language is carried through to the roof superstructure and the accompanying terrace, resulting in a cohesive and visually striking space.