Vienna is situated on the western edge of the Vienna Basin, on the gentle slopes of the Vienna Woods, a branch of the foothills of the Alps. This “Green Lung” is part of the (legally protected) green belt. In 2005, the Vienna Woods were also designated a Biosphere Reserve by UNESCO – a designation for areas with a special cultural and natural landscape. A world city partially situated in a Biosphere Reserve is not only something special, but also unique anywhere in the world!