Standing inside of the castle, looking through the window at a group of "regular" tourists looking at the outside of the castle, not having the slightest clue what is going on inside.
I could hear the tour guide explaining this and that to his followers who seemed genuinely interested in looking at everything he was pointing at — on the outside of the castle. Nobody of them had the slightest idea that right behind the wall they were looking at, a radically different type of tourism was under way. Literally a parallel world that they couldn't enter, just because of their own narrow-mindedness. Standing on the right side of the wall was kind of an exhilarating experience.