Rumeli Hisar, for example, is the most beautiful military building in the world. For example, Melly Castle was built near the narrowest section of the Bosphorous Strait, known as the Eurasian boundary, and it faces the Anadoluhisari Castle. If Melly Castle is located at the upper level of Bosporus, it has been carrying the function of cross-locking the Strait since ancient times. Enemy ships from the Black Sea of Turkey or through the Dardanelles Strait in the South can not surmount this may be the last barrier. Rumeili Castle covers an area of 60,000 square meters and its building volume is about 57,700 cubic meters. Mountains Gate, Dizdar, Hisarpence and Sel are its four main gates. In addition, some minor gates are called Mezarlik. The castle has four towers in four directions, named after Pasha, Saruca Pasha, Halil Pasha, Zaganos Pasha and Zaganas Pasha. In addition, there are 13 castles of different sizes. It took only 139 days to complete such a pet castle as Merry Castle. According to some famous histories, 1,000 supervisors, 2,000 coolies and many transport workers were employed to build the fort. The timber used to build the fort came from Izmit and Eregli in the Black Sea; the stone material came from various parts of Anatolia; and the Thinboris material came from the destroyed Byzantine buildings around the fort. If Melly Castle wasn't in our plan, it was recommended by the owner of our Chinese hotel in Istanbul. He said that we were close to the new palace and should play together by the way. Since you're on your way, come here without regret. This is the perfect place to overlook the Bosporus Strait. Now Rumeili Fortress is not only an important historical attraction, but also an important place for cultural activities in Istanbul. There are often concerts here. When you rely on the walls full of historical memories and listen to the live performances of the masters, maybe time can really stop.