Babelsberger Str., 14473 Potsdam, Deutschland | With the hop-on hop-off tour, you are welcome to join at any stop throughout the day. At the main train station, please proceed to the North exit; at Luisenplatz, the boarding point is stop no. 2. To make the most of the tour and enjoy the full program, we recommend arriving early. Please note that if you join later in the day, the tour will conclude at the main train station.