Ming City Walls Ruins Park is one of the top-quality parks in Beijing. It is located 3 kilometers from the center of the city, between the southeast turret and Chongwen Gate in the west. It is a scenic spot of ancient architectural relic. It was open to the public in 2002. The Ming City Wall, first built over 580 years ago, in 1419, or the 17th year of Emperor Yongle 's reign in the Ming Dynasty, used to run about 40 kilometers. The remaining relic, which is about 1.5 kilometers long, used to be part of the inner city wall of Beijing. It is the longest section of the city wall remains in the city, and an important symbol of Beijing.