It takes a while to find it, because it's going through an alley, in the Medina Piazza, there are signs that show you the way but not very obvious, there are children who want to show you the way but they want money in return. I was very glad that we came as soon as we arrived, the indoor scenery as a school was still there, still retaining a very primitive state, many beautiful sculptures are still preserved, and the visit is only 20 dirhams (about £2), very worth it. Highly recommended.