Architecture of Mongolia
The Xiongnu confederation ruled present-day Mongolia from the third century BCE through the first century CE, living in portable, round tents on carts and round yurts. The Xiongnu aristocracy lived in small palaces, and their villages were protected by huge walls. S. I. Rudenko also mentions capital construction built of logs. Archaeological excavations indicate that the Xiongnu had towns; their chief city was Luut Hot (Dragon City).
Xiongnu
However, the eastern part of north China came under the control of a rebel Xiongnu-Han general of Jie ancestry named Shi Le. Liu Yao and Shi Le fought a long war until 329, when Liu Yao was captured in battle and executed. Chang'an fell to Shi Le soon after, and the Xiongnu dynasty was wiped out. North China was ruled by Shi Le's Later Zhao dynasty for the next 20 years.