Hallo. Nein beim Birkenkopf muss man nichts bezahlen. Es ist alles kostenlos.

Hey buddy. Take the U9 toward Botnang from the HBF and hop off at Lindpaintner Str. Behind the station on the opposite side that the street is on, there's a stairway through the trees. That will take you straight up to Geißeichstraße. Turn right, head up the footpath (the intersection is odd but you'll find your way) and you'll be able to take one off the wilderness turns on the right side. You can wait until a fair way up the hill to go straight there but I climbed the hill through the forest via an earlier turnoff for a scenic walk. Hope this helps!

No. That address will take you downtown Stuttgart near the Schlossplatz. If coming from Vaihingen or the A8, take the B14. Drive straight until you get to the corner of Rotenwaldstraße and Geißeichstraße. You'll see a parking lot on your leftside. Take a left at the stop light (you'll see a sign that says Robinson Barracks) and take your first right. (Go to michelin maps and put Rotenwaldstraße. The big white blank space is the entire hill--you should see "Sandweg" on there) Hope this helps and you find Rubble Hill!

It's at the corner of Geiseichstrasse and Rottenwalstrasse. There is a small parking lot. You cross the Geiseichstasse and begin a windy/paved route uphill.