Ben Youssef Madrasa — Marrakech

Founded in 1564–65 by Saadian sultan Abdallah al-Ghalib on the site of an earlier Marinid madrasa, Ben Youssef once housed up to 800 students across 130 dormitory cells, making it the largest madrasa in North Africa. It closed as a school in 1960 and reopened as a historic monument; the latest restoration brought it back to the public in April 2022.