Outdoor escape game by Qula โ not a physical escape room, but a self-guided puzzle route through Rotterdam. In Rotterdam there are 2 different routes. Rotterdam is known for its modern architecture, also called 'Manhattan on the Maas'. The City Trail leads players at their own pace through the city: on the smartphone they solve riddles and tasks that lead from place to place, passing among others De Markthal, Erasmusbrug, Hotel New York and the Cube Houses. It is an independent treasure hunt without a guide, where the team with the most points wins.