This historical place in Istanbul was built in the fifth century by Theodosius, and its main objective was to be a welcome point for arrivals from Europe and other distant countries, and was known in history as the "Fortress of the Seven Towers", and the ancient doors of this tower were very large and plated with gold, and this is what made it one One of the most expensive places built in that period, and it consisted of 4 towers until three more towers were added in 1543 AD by Muhammad Al-Fateh, and it is one of the places that is open daily, except on Sundays. And do not forget to take your camera to take the best souvenir photos of this archaeological and historical place.