One of a few in the city, this medersa is still in use today by students of Islamic philosophy. Quranic inscriptions are carved into almost everything in sight. Apparently the detailing has survived all these years thanks to the egg white formula applied over the plaster. How's that for low maintenance design.
Found within the Jewish Quarter of the city, which is now largely out of use and in a state of disrepair, this synagogue is open for visiting.
Shrine of Moulay Idriss Junior
If I hadn't mentioned already, Moroccan religious sites don't tend to be open to non-Muslims. This isn't a typical custom of a lot of Islamic sites, however it does seem to be in Morocco.
So, here are the behind-the-scenes images of Moulay Idriss II's shrine, currently under renovation, just for you.