We recently visited Fes, Morocco for a week or so. We stayed in a beautiful hotel just on the edge of the Medina on a hill. It was a perfect spot to record the Call to Prayer that happens 5 times a day beginning at 5AM.
For those that might not be familiar with the Call to Prayer it is one of the strangest things you’ve ever heard, especially in the Medina as there are hundreds of mosques and minarets, all equipped with distorted loudspeakers and cheap microphones. The elder of the mosque starts wailing into this old fashioned PA system, then times that by 200 with each mosque trying to outdo the next in volume. It is eerie sounding.
It goes on for a while and is basically just a reminder to get to the mosque to do your prayer ritual.

Here is one of our recordings of the Call to Prayer:
call_to_prayer-fr9t_11-02.mp3