The Huangyaguan Great Wall
The Huangyaguan Great Wall is 28 kilometers north of Ji county. Originally built in Tianbao 7th of Beiqi (557 A D), the Huangyanguan was repaired for the first time in Ming Dynasty with bricks and for the second time in 1985. In 1986 it was listed as a key relics protection target of Tianjin city. Now it is also chosen as a patriotic education and national defense education base of Tianjin.