I have recently seen a calendar called "Lost Places" in a bookshop. There even seems to be kind of a community of photographers hunting abandoned places.
There is not much yet I could contribute, because for that I'd have to browse through my own pghotos, but I love taking photos of wood paths. I often stop at certain places on a path, and then taking a photo which I call a "mood picture" of the path. I just love it, for example, when a path in a wood takes a turn or opens into something.
One contribution I can make, however, is a photo I took along a small path around the "Dornburg", wghich is a highish plateau consisting of Basalt stone, which has a few legends connected to it. A celtic oppidum was on its top, but so far the government doesn't show any interest in further excavating it (a wall had been excavated more that 100 years ago, if I remember correctly).
That "Dornburg plateau" is located high above a small group of villages located between Limburg an der Lahn and Westerburg in the far west of federal state of
Hessen.
On the map on that Wikipedia page, you can see Limburg at the far west.
Wikipedia page about the village of Dornburg, having a photo of the "Rödchesmauer", which is the wall of the celtic oppidum :
https://de.wikipedia.org/wiki/Dornburg_(Hessen) and in English language :
https://en.wikipedia.org/wiki/Dornburg,_Hesse
At least 2 villages of the group of villages are 1200 years old now, according to the first recorded mention in documents of them.
Well, and here is my contribution : Take a look at those crossed branches in the middle …