Donau City. Center of business. You’re leaving the office and see a guy in a suit. With a briefcase. On a scooter. Welcome to Vienna, a people-friendly city. Donau City. You’re walking between office buildings, passing by DC Tower 1 with it’s amazing facade, to the other side of the apartment block and all of the sudden you’re in a huge and beautiful Donau Park. With lawns and flowers and bushes and trees and a meadow and drinking fountains. And if you want, you can go bungee jumping from a Donauturm. There are asphalt paths, so you can go rollerskating or ride your scooter. Welcome to Vienna, a people-friendly city.…