Ancient buildings in Yunnanyi Town, National heritage site in Yunnanyi Town, China

The Ancient buildings in Yunnanyi Town form the core of Yunnanyi village along its main road, centred on the Yunnanyi post station. The complex includes the roughly 1,720-metre-long, 3–5-metre-wide old post road, the station, the Da Madian horse inn, shops, and courtyard houses such as the Li family compounds and the Guo and Qian residences. Shops line the road with a shopfront and rear inn in a "one door, one window, one counter" layout; most main buildings date to the mid-to-late Qing dynasty.

The site was the seat of Yunnan County under the Han and of Yunnan Commandery under Shu Han and Jin. The name Yunnanyi comes from the post station set up here in the Yuan, Ming and Qing periods. Most surviving buildings date from the mid-to-late Qing; the Guansheng Hall was first built in the early Ming, destroyed during the Xianfeng-Tongzhi era and rebuilt under Guangxu. In 2013 the complex was listed as a Major Historical and Cultural Site Protected at the National Level.

The name Yunnanyi comes from the Yuan, Ming and Qing postal station set up here on the old Yunnan county and commandery seat. Shops line the 1,720 m road with a street frontage of one door, one window and one counter, behind which lay inn courtyards. The Da Madian, run by the Qian family for meals, lodging, horses and goods, now houses the Yunnan Caravan Culture Museum.

The core of the complex lies along the middle of Yunnanyi village's main street, where the old post road runs about 1,720 m and is 3–5 m wide. Walking this road lets you pass the shops, inns and the Great Horse Inn in sequence. The Great Horse Inn now houses the Yunnan Caravan Culture Museum.

The 1,720-metre ancient post road, 3 to 5 metres wide, is lined with shop-houses built on a "one door, one window, one counter" plan, each combining a street-facing shop with a rear inn yard. The Big Horse Inn, run by the Qian family for food, lodging, horses and goods trading, now houses the Yunnan Caravan Culture Museum.