A photo taken on Sept 18 shows the autumn view of Rugao, a county-level city in Nantong, East China's Jiangsu province. [Photo/Nantong Daily]

Rugao, a county-level city in Nantong, East China's Jiangsu province, has a history of more than 1,600 years, and is the earliest ancient city in the Yangtze River Delta recorded in history.

The inner and outer moats surrounding the city are a unique aspect of China's city construction throughout history.

The city now enjoys the reputation of being "Jiangsu's Famous Historical and Cultural City" and "China's Capital of Bonsai", and is renowned for the longevity of its residents.

A photo taken on Sept 18 shows the autumn view of Rugao, a county-level city in Nantong, East China's Jiangsu province. [Photo/Nantong Daily]

A photo taken on Sept 18 shows the autumn view of Rugao, a county-level city in Nantong, East China's Jiangsu province. [Photo/Nantong Daily]