Horinger Tuchengzi Site, a Major Historical and Cultural Site Protected at the National Level, is located 12 kilometres north of Horinger County seat, Inner Mongolia Autonomous Region. It is the ruins of an ancient city dating from the Han Dynasty through the Tang Dynasty.
City gates, barbicans, corner towers and building foundations remain largely intact, while the outlines of streets inside the city are still faintly discernible. The site is divided into three zones on the planar layout:
The Southern Zone retains the southern section of the eastern wall and the entire southern wall;
The Northern Zone preserves its eastern, western, northern and southwestern walls;
The Central Zone has surviving eastern and northern walls, which are likely relics of the city from the Liao, Jin and Yuan dynasties.
The city takes the shape of an irregular polygon, stretching 1,550 metres from east to west and 2,250 metres from north to south, covering a total area of approximately 3.49 million square metres.
Dozens of Han and Tang tombs have been unearthed outside the city, yielding abundant physical relics. Among them are a gem-inlaid golden pig pendant of the Northern Wei Dynasty, a tri-coloured parrot-shaped ewer of the Tang Dynasty, and mural tombs from the Northern Wei and Tang dynasties, all of which carry extremely high academic research value.
In 2016, Horinger Tuchengzi Site was included in the list of autonomous regional archaeological sites. In the same year, it was incorporated into the Special Plan for the Protection of Large Archaeological Sites during the 13th Five-Year Plan Period issued by the National Cultural Heritage Administration.