Also known as the impregnable wall. Located in Huairou district southwest. Was built in the Northern Qi Dynasty years, Sui, Tang Dynasty had several renovations. Emperor jia jing's period widened the original Great Wall, and the addition of enemy units. a total length 12.94 km, located 40 enemy units hollow, solid enemy units 9, wall units 5. Easternmost peak of the Great Wall and built with walls on both sides of the wall built forts for the 18 serrated, each about 2 meters high, locally known here as eighteen kicking. Huairou District Northwest built a county that Huanghuacheng (ancient town yellow), the "capital north gate," said. Shanhaiguan Great Wall, east, west Pass, north seas Ye, location is very important, so the construction of this section is very fine.

Here three quarters of flowering seasons, picturesque scenery. She surrounded by hills, lush green forests, forming a colorful landscape plants throughout the year inside. Nine landscape a sub-field, Aoyama clear water two fell in love. Thus can enjoy the beautiful lakes and mountains, and impressive handsome Qing Ling Great Wall, as well as trees safflower accompanied by side. People are away from the city hustle, the wonderful feeling of returning to nature. And here's " Ruin King" is fascinating, amazing.