We visited this creepy looking house in the middle of the day. Mom was forced to come because she was too afraid to sit in the truck alone while Dad and I explored the massive rock garden. It was very intriguing as we walked around, admiring each different "development" and how they were created. There were old headstones and millstones throughout.
A cat followed us around and we came to this massive barrel; I looked inside through the window and it was just storage for other materials. There was a tree statue thing made out of old tree limbs, an old prison door, endless gates and old benches.
I'm going to go out on a limb and guess that the altar that rises above this mass garden was at some time that of sacrificial devotion, but whatever it was -- it was definitely the coolest free tourist trap of the day! Props to the owner!