The Madrasa of Ulugh Beg in Samarqand (1417-20): standing in front of the Registan square, this four-iwan madrasa has four domed chambers on the corners, possibly functioning as mausolea, and a vaulted prayer hall on the iwan axis. The Registan square was defined later by the addition of two other madrasas to form a locus of urban life. |