Yedikule

Turkey built many castles during the Ottoman period. The land portion of the fortress was built under the reign of Seodsius II (circa 408 AD) as the most important entrance to the city at that time. In addition, part of the annexation of the building after Porta Aurea was important in Byzantine history. After four years of conquering Istanbul, Mehmet II Sultan built an inner castle between 1457 and 1458. In this way, Byzantine and Ottoman architecture merged. The appearance is very majestic, here in ancient times was a place of great officialdom, ordinary people can not contact.

I have to wonder if this place was abandoned by the Turkish government, no tickets, no one inside, and overgrown around, a dilapidated look.

Very good attraction, driving is not good parking, you can travel by subway