I've been to the castle several times over the years. I've sat down and visited with Jim Bishop, the builder of the castle, a couple of times. Quite a character. Amazing that one guy, almost single handedly, built that castle, but he did. He's about to the end of his building days as his age and health are catching up with him so probably won't be many more changes from here on out.
When I took the guys there as jimw said above, we went clear up to the highest point, or at least Chuck did and I took his pic. from just below him. If a guy is scared of heights, not a place to go.
It's worth a stop if a guy is in the area. Pretty amazing.
1987 Yamaha Venture to 88,256 miles...crashed
2009 FJR 33750 miles and counting