Rab'-e Rashidi, which is one of the valuable monuments of Tabriz, was first a small town with a library, school, mosque, orphanage, bathhouse, inn, hospital, higher education institutes, and workshops and it has been constructed in late 7th century or early 8th century A.H. by Khwaja Rashiduddin Fazlullah Hamadani on the hillside of Sorkhab Mount. Then, this complex had 4 schools on four sides of it and therefore it was known as Rab'-e Rashidi. According to a letter written by Khwaja Rashiduddin to his two sons on building this complex, it is inferred that at that time, Rab'-e Rashidi was a university and every field of science has been established there; about 6000 students were studying there and Khwaja had dedicated endowments to complete the library and school and to publish books as well as funding of students' living and study. He gathered great scientists from every corner and assigned them to teaching and compiling books. They had emoluments and among them 50 physicians and several surgeons from India, Egypt, China and Sham (Syria) were working there. To finance this center, Khwaja Rashiduddin Fazlullah Hamadani dedicated many estates in various regions of old Iran, Iraq, Afghanistan, Georgia, Rome, Azerbaijan, and Syria to this center. Similar to most old cities, Rab'-e Rashidi had a great fence and rampart. Its architecture is in Azeri Style. Rab'-e Rashidi's deed of endowment has been registered in the list of UNESCO's Documentary Heritage.