If you go down the hill on the street to your right, as you face the Siebers Tower, you will come to the gate through the Kobolzeller Tower, shown in the photo above.
You will then enter the Kobolzeller Bastion, shown in the photo below. Note the coat of arms with a black eagle, which was the symbol of the free city of Rothenburg ob der Tauber.
From the inner gate tower, there is access to the battlement walk and the Devil's Pulpit which served as a look-out place, as shown in the photo below.
Outside the Kobolzeller bastion, there is a steep road that leads down to the Tauber valley.