On the south side of Beijing Jianguomen, southeast of Beijing Railway Station. The area spans the three districts of Dongcheng, Chongwen and Chaoyang. The defensive buildings at the southeast corner of the inner city of Beijing in the Ming and Qing dynasties. When the Beijing city was built in the early Ming Dynasty, a turret was built in each of the four cities in the inner city (the other three turrets did not exist). The floor of the building was rectangular and protruded from the corner of the city wall. The gray-cylinder green trimming edge rests on the top of the mountain. The intersection of the ridges at the corner is decorated with a treasure roof. The inner raft is laid on the third floor of the slab, and the wooden stairs are connected. The building is built on the masonry platform, with one door on the inside and the northwest side, leading to the top of the wall. There are 144 front windows (perforations) on the outer two sides and four walls. It is the only remaining turret in the old city of Beijing.
Beijing Underground Railway
It was built in 1965. U69 was officially opened to traffic in July. Crossing Beijing City things. From Beijing Railway Station in the east, along the west wall of the ancient city wall, through the front door, out of Fuxingmen, through the Mudu River, Bubao Babao Mountain, around Cuiwei Mountain, directly to the apple orchard in Shijingshan, with a working mileage of 24 kilometers. There are 16 stations in the whole process, which are composed of the ground station hall and the underground station hall. They are all paved with marble, elegant and generous. Each underground station building is unique. The underground railway runs electric locomotives with dual-track operation and a top speed of 80 kilometers per hour. Air conditioners and ventilation are installed in the cabin.
Seventy-two scenes of Guangou
On both sides of the 20-km ravine between the south exit of Changping District in Beijing and Badaling in Yanqing District. In the area of Guangou, there are two mountain screens, one water runoff. The North Soul Road Yuan《水经注》said that "the mountains are deep, the side roads are narrow, the forests are dangerous, the roads are the orbits, the birds and the beasts, the colds and the sorrows, the eunuchs wandering, the listeners are not sad. ". After the tenth century, Guangou became the main thoroughfare of the Jingshi to the outside of the Sai, and the camel came on. People put the names of the mountains and rivers into 72 scenes, some of which are true portraits, others are legendary, and the names are different, and the addresses are unclear.xx