People,
I have come across info on the Pied Piper which is new to me.
I already knew that the children were enchanted and led to a mountain or hill outside of town, and that the piper played a certain sequence on his flute and a sliding wall suddenly opened, whereupon the children entered and the door slid down and closed behind the group. The lame boy who was limpimg from behind, and saw from a distance, reported all this.
But the following narration tells, from documents, that they passed through the West Gate of town and came shortly to a "mountain" (hill?) which opened up, et cetera. Even today,the limits of the old part of town must be known, or even most likely preserved. This means that from the old town gate, a person would only have to look out towards the nearest big hill.
But the narration also tells that they went to a place called Calvary, which is where executions used to take place, at the base of a big hill.
So it shouldn'r be too hard to find out where the mountainside is (which has a huge sliding door), covered over with foilage. I'm sure that these traditional places must be known.
I'll try to find something out on Google maps. You all can look, too.