Architectural firm ARGE architekten grebner + amann designed a new extension to the existing building from the 1980s, connecting the two halves with a glass joint. Old and new meet and employees from different teams come together in this exciting, light-filled interstitial space. The interface is intended as a communication and exchange point, with a different design on each floor. In the ground-floor Chocolate Café, guests are offered refreshments including chocolate and coffee. One floor up, the Dialogue Café promotes a place for informal exchange between meetings. While at the very top, the Fernweh Café (EN: Wanderlust Café) offers a place to let your gaze wander.