Introduction to Princess Castle: Princess Castle is located in the Mingtiegai Canyon about 70 kilometers south of the county seat of Taxkorgan Tajik Autonomous County. The local Tajiks call it "Kizikorgan" and is located high in Kara, the throat of the ancient Silk Road. On a high mountain with an altitude of more than 4,000 meters in its canyon, it is one of the tallest ancient castles currently known in China. It faces the Tashkurgan River with roaring and ink-like water in front, and leans against the towering blue sky of Pisling Daban in the back. It is abrupt and towering, steep and straight, with city walls, heavy gates, caves and stone chambers. The hilltop where the castle is located is steep and steep. There is a ravine on the side that leads to the Pisiling Dashan, which is 4,000 meters above sea level and is the throat of the South Silk Road.