This App is part of a Treasure Hunt through the city. The adventure starts somewhere in the city center. At the start, you will discover the first clue. When you solve that puzzle, it points you to the second challenge. Each challenge will be a bit more difficult than the last one. And the final station will be the hardest. You have to find all the station to succeed. And the clues can be anywhere: A particular piece hanging in a gallery. A hidden message on a tape in a record store. A code