Line 2 is also known as the Loop Line. It was first built on the site of the Beijing city wall, and expanded from its south and southwestern parts to form a full loop in the early 1980s. The line is linked to Line 1 at Fuxingmen and Jianguomen, and to Line 13 at Xizhimen and Dongzhimen. Line 2 is 23.61 km long, most of which is beneath the 2nd Ring Road.
Current Line 2 stations are: Xizhimen (interchange to Line 13), Chegongzhuang, Fuchengmen, Fuxingmen (interchange to Line 1), Changchunjie, Xuanwumen, Hepingmen, Qianmen, Chongwenmen, Beijing Railway Station, Jianguomen (interchange to Line 1), Chaoyangmen, Dongsishitiao, Dongzhimen (interchange to Line 13), Yonghegong, Andingmen, Guloudajie and Jishuitan.
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