Villa on a Rock

I thought this picture facinating when I saw it.  It is a villa on the top of a very large standing rock.  The angle of the shot does not admit of a way to get to the villa but I am sure that there is.  My thought is that it must have taken a lot of energy, effort, and planning to get the bulding materials on site.  I  wonder how many rooms have been carved in the rock below the villa structure?