I believe one pretty much gets back the emotions and feelings they bring to such places. I felt absolutely no evil there: only the awe of what you describe: "many hidden stories, and one where great power once circulated."
Not evil. Foreboding. A sense of dread. Formless tension. I'm not sure how to describe it without sounding like a cheap seance. And I'm sure I had been predisposed to that aura by the tales I've heard told.
But I'm not one normally susceptible to those kinds of suggestions, and I had looked forward to the visit, more out of curiosity than any dalliance with the paranormal.
Yet the feeling was there, and looking at the pictures still conjures up that shadowy whisper that "something is not right here."