Stuttgart Marienplatz and Zacke train

STUTTGART, GERMANY – JULY 27, 2013: Zacke, the gearwheel driven train is leaving Marienplatz on July 27, 2013 in Stuttgart, Germany. Marienplatz is a central plaza in Stuttgart, surrounded by the hills of the town that are hard to reach by a conventional train. Hence the Zacke is going up there