What are some evidence the Han Empire displayed power?

The Han Dynasty (206 BCE-220 CE) was one of the longest of China's major dynasties. In terms of power and prestige, the Han Dynasty in the East rivalled its almost contemporary Roman Empire in the West. With only minor interruptions it lasted a span of over four centuries and was considered a golden age in Chinese history especially in arts, politics and technology. All subsequent Chinese dynasties looked back to the Han period as an inspiring model of a united empire and self-perpetuating government.