So after months of knowing this abandoned place existed, I finally went to see it with my own eyes and lenses last weekend - and wow, was it ever worth the wait and the 2km walk in the muddy forest! I'll take the next few days to show you what I saw, starting with this photo.
I was a pretty big Lost fan when it played on tv and the episodes where the castaways would find new buildings and underground secret stations were always my favourites - so when I "found" this abandoned location, I quickly went into Lost-mode and thought it would be cool to fake a photo later in Photoshop and make it look like the huge metal pipe was sponsored by Oceanic Airlines and that the mill itself was an old Dharma Station (and since this was a real science lab focused on new types of phosphate for agriculture 100 years ago, I used 2 test tubes for my Dharma logo).