Discover Berlin's most interesting places by solving clues around town and unlocking amazing stories. Visit Checkpoint Charlie, Brandenburg Gate, and the Berlin Wall, as well as other locations. Download Questo, the gamified travel app, onto your smartphone, and begin your exciting exploration game. Play the role of a person needing to escape East Berlin in 1984, and see if you can do it. Solve a clue to reveal exact directions to your next stop on the tour, without the need of a map, GPS, or a physical guide. Each solution unlocks an interesting story, and reveals Berlin's secrets. Complete the tour at your own pace as there's no time limit, though around two hours is normally enough. Pause the game at any time, and restart whenever you want from the last place you visited. After purchasing the quest, an access code will be delivered to your email, which can then be used in the downloadable app. Once you have downloaded the app, simply head to the starting point at Potsdamer Platz whenever you choose, and begin your adventure. For larger groups, one person can purchase access for the entire group by selecting the number of people in the group. All group members will be able to play the city game on their smartphone. Alternatively, each person can purchase their own voucher. You can play as a group and solve the clues together as you walk, or you can split into smaller groups/teams and compete against the others. Each person can also play on their own, separate from the group, and meet the group at the end.