If you are in the region of Germany near the B500, I would whole heartly recommend you take a look. It's one of the best roads in europe ( for a biker ). We drove a section of it last year on our way back from Switzerland. It was amazing. The road from Freiberg im Breisgau to Treiberg is a highlight....Freiburg im Breisgau, Germany to Triberg, Germany - Google Maps