Following an international architecture competition, Rino Brodbeck and Jacques Roulet were commissioned to build the new WMO building in 1995. Both sides of the building enjoy maximum natural lighting. Its designers attached great importance to the rational and efficient use of the available energy and light, yet without harming the environment. One of the most remarkable features of this building is its double façade, which acts as both a protective and insulating envelope and a ventilation system. The ninth floor is occupied by a cafeteria with a panoramic terrace overlooking the lake and city.