Welcome to Stephansplatz, the absolute center of Vienna and the geographic soul of Austria. As you stand here in the middle of the first district, also known as the Innere Stadt, you are at what locals call kilometer zero—the point from which all distances in the entire country are measured. This square has been the pulse of the city for nearly a thousand years. Look around and you will see a striking contrast: the medieval stone of the great cathedral on one side and the mirrors of the modern Haas House on the other. For centuries, this was not just a square but also a sacred cemetery, and beneath your feet lies a labyrinth of catacombs and ancient Roman foundations called Vindobona. Today, it is a pedestrian paradise where the sound of clip-clopping horse carriages, or Fiakers, blends with the chatter of people from every corner of the globe. Take a deep breath and soak in the atmosphere of a city that was once the capital of a massive empire.