A place that I had never explicitly planned to visit was the Romantic Rhine, that is, the middle Rhine, which is defined as the region between Bingen and Bonn. The upper half of the section is particularly famous, known as the Rhine Gorge, a 71 kilometre long gorge formed by the constant glacial waters carving their way from high in the Alps into Lake Constance and escaping into the North Sea. The average elevation of the gorge is roughly 100 metres, making for some spectacular scenery. Adding to this are the 40-odd medieval castles built along this stretch, yielding an average separation of only one and a half kilometres between castles. The Rhine Gorge is a UNESCO world heritage site which has meant that the cities that line the gorge are kept pristine; however it has also meant that no bridges have been allowed to be built across the river, leading to practical difficulties. In any case, this area is everything that I think of when I think of Germany, I just did not know it before I went.