Right, as you self-tour the castle small diagrams show where you are, but also provide a good schematic of the structure.
Above, while many will only see the obvious ruins, the elaborate palas was protected by a layer of outer walls, the remains that are still visible if you push into the woods and search for them. The advantage of seeing this is that these sections of ruins are truly authentic, being around 800 to 900 years old.
Right, the keep (or donjon) is very impressive and provides an excellent example of what many castles in the area once looked like. When building on the site, the first thing to go up was the outer wall (the bailey), and after that effort was made to build the keep which served as both a defensive structure and living quarters. In the photo you can see the primary entrance, now blocked off with plexiglass, while the hording to the left was designed to protect the platforms leading to the entrance.
There are still extant some subterranean levels in the castle. These can be found below the palas (below).
