The tomb of Shehzad Mustafa is one of the important historical points that characterize the city of Istanbul, which is characterized by an architectural design with an octagonal structure, in which stone and brick materials were used together, and includes a lead-covered dome sitting on an octagonal drum, and the entrance door contains a marble pillar. From the inside, the walls of the mausoleum are 3 meters high and decorated with carnations and lilies on a white background. It is known that it was built for Emir Mustafa (Şehzade Mustafa), who was strangled by Suleiman the Magnificent in the Konya plain.