Subscribed. I have been twice at the Alhambra (I am spanish) and I'm never tired of doing it. I want to return one day.
If you like this stuff, you may like the city of "Medina Azahara", in Cordoba. I have never been there althoug is near to me, and I have to visit it, it's from the Xth century and it's not very known outside of Spain.
http://en.wikipedia.org/wiki/Medina_Azahara
Ah, and the columns are from a wrong restauration in the XIXth century. In the drawing you uploaded you can see that they were made from brick, originally.