Located on the coast road leaning to Bakırkoy from Sarayburnu, that great structure was built as an entrance door of the city ‘’Constantinople (todays Istanbul) ’’ for Byzantine Emperors.
At the beginning, that glorious entry door, also called golden door was established by Byzantine Emperor Theodosius I to be used as a triumphal arch in 412. During the reign of Theodosius II, two towers were added on both sides of the door and it combined with the city walls. Afterwards, in the period of Byzantine Emperor Kantakuzen IV, other two towers were added again next to those towers.
Once upon a time, opened to the biggest street in the city, that fascinating golden door met magnificently not only the Emperors gaining a victory from the war but also the eligible people, which looks like a Red Carpet welcoming Hollywood stars.
Additionally, because it was ornamented with golden gilts and silver leafs, that famous door was named Gilded Door except for Golden Door.
In time, another smaller golden door was erected between ditch and walls around that gilded door in order to defence the city against the any attacks. Also it was surrogated with the sculptures belonging to Goddess of the Victory and Byzantine Eagle but they could not stand today.
After the conquest of Istanbul, Ottoman Sultan Mehmet II, the Conqueror turned the city walls with four towers into a closed fortress by adding three different towers. Since then it was named as Yedikule Fortress (Fortress of the Seven Towers) which is a production of Ottoman-Byzantines.
Today it is an admirable museum.