Nature trail again. Yes, it is this steep and would be precarious if it wasn't for the railings. One of the castle turrets is to the right.

When they built the highway they had to blast a lot of granite. What better use for a lot of surplus granite than building a castle on top of a mountain? A cool idea, so they went with it. Civil engineering projects aren't as much fun these days. They don't build castles in the sky anymore, just for the heck of it.