The Old City of Shanghai (Chinese: 上海古城; pinyin: Shànghăi Gùchéng) is the most ancient area of Shanghai. It is circular in shape even today, and used to be surrounded by a defensive wall. Notable features include the City God Temple which is located in the center of the Old City and is connected to the Yuyuan Garden. Today, most of the walls have been replaced by broad circular avenues, the Renmin Lu to the North and Zhonghua Lu to the South.