It's difficult to say what's more breathtaking: the four railway stations that Zaha Hadid designed, which climb from the Innsbruck city center up the Nordkette mountain, or the Alpine landscapes along the route. The stations—double-curvature glass shells that seem to hover above concrete platforms—were conceived with particular care toward the specific topography and surroundings of each location. To achieve each one's unique appearance of a flowing ice formation frozen in place, Hadid studied glacial moraines and ice movements.