Constantine the Great in the 4th century and Theodosius II in the 5th century. The walls were frequently restored in the Byzantine period but ignored during the Ottoman period due to the impossibility of a danger from the sea. Only the walls, underneath the Topkapi Palace, were restored since they were used as walls of the first courtyard of the palace. There were important harbors and fishing villages along the walls. Many small and big doors were constructed on the walls in order to reach these harbors.

There is no ruins in the region between Galata Bridge and Sarayburnu. SEPETCI KASRI in this region is in the borders of the Topkapi Palace. This building which is used as the Center "of International Press is one of the three kiosks which are situated out of the palace and could have survived. It was constructed in the 17th century. The Bosphorus and the Golden Horn promenades of the sultan by boat began from this point.

The building with minarets behind the (Jatladikapi District belong to SERGOOS and BAKHOS CHURCHES of Byzantine period, and known as SMALL HAGIA SOPHIA MOSQUE today.