The purpose of this dissertation is the study of the topographical, functional and symbolical synthesis of the monumental center of Constantinople –the complex which surrounded the Sacred Palace– through the restoration of one of its most important monuments, the Basilica or Basileios Stoa, the seat of the higher education, the public Library, the Courts of justice and the Temple of Tyche. The monumental center of Constantinople is defined as an urban and symbolical space, the functional synthesis of which was affected by the tradition of the royal cities of the Greco-Roman world where monumental centers were located around the royal palaces housing important public functions. Moreover the Basileios Stoa is restored as the ancient ‘’Megiste Tetrastoos Agora’’ which was renamed and renovated during the reign of the Constantinian dynasty as the seat of higher education and justice. The location of the Schools and the Library to the Basileios Stoa reveals the intention of Constantine and his successors to create an intellectual center close to the Sacred Palace according to the tradition of the Hellenistic royal palaces, especially the one of Alexandria. Furthermore the functional and symbolical character of the monumental center of Constantinople was formed around the notion of wisdom by the dedication of its Cathedral to the Wisdom of God along with the juxtaposition of educational functions and symbols of the Greco-roman world. This process was directly related to the evolution of imperial ideology during the second and third quarter of the 4th century.