The old Zingerli Madrasah (Theological College) was founded in 1385 AD, and as one of the best preserved buildings in Mardin, it should be on your list of sights to visit in Mardin. The school is characterized by a special and different architectural design consisting of a domed mosque, a mausoleum, two inner courtyards and a portico. Perhaps the most distinctive feature of the building is the decorated and complex entrance, which is a beautiful example of Islamic architecture. And for those not interested in stonework, don't miss the chance to climb the stairs to the roof, where you'll be rewarded with panoramic views of the city.