Line 1 (East-West Line): Sihuidong – Pingguoyuan
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Length: 31 kilometers (19 miles)
Main Stops: Wukesong, Gongzhufen, Military Museum, Xidan, Tiananmen, Wangfujing, Jianguomen, Yonganli, Guomao
Line 2 (Circle Line): (it is a line running beneath the 2nd Ring Road.)
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Length: 23 kilometers (14 miles)
Main Stops: Xizhimen, Drum Tower, Dongzhimen, Chaoyangmen, Jianguomen, Beijing Railway Station, Qianmen, Xuanwumen, Fuxingmen, Fuchengmen
Line 4: Anheqiao North – Gongyixiqiao
Length: 28.14 kilometers (17.5 miles)
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Main Stops: Yuanmingyuan, Beijing University East Gate, Zhonguancun, Renmin University, National Library, Beijing Zoo, Xizhimen, Xinjiekou, Xisi, Xidan, Xuanwumen, Caishikou, South Railway Station, Majiabao
Line 5: Tiantongyuan North– Songjiazhuang (north to south)
Length: 27.6 kilometers (17 miles)
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Main Stops: Heping Xiqiao, Yonghegong, Dongsi, Dengshikou, Dongdan, Chongwenmen, Temple of Heaven (east entrance)
Line 6: Haidian Wuluju – Lucheng (west to east)
Length: 54 kilometers (34 miles)
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Main Stops: Cishousi, Chegongzhuang, Pinganli, Dongsi, Chaoyangmen, Hujialou
Line 7: Beijing West Railway Station – Jiaohuachang
Length: 24 kilometers (15 miles)
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Line 8: Zhuxinzhuang – Nanluoguxiang
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Main Stops: Olympic Park, Olympic Sports Center Stadium, Guloudajie
Line 9: National Library – Guogongzhuang
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Main Stops: National Library, Beijing West Railway Station, Liuliqiao, Fengtai Nan Lu
Line 10 (Circle Line): Taking Bagou as Terminal
Length: 57 kilometers (35 miles)
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Main Stops: Suzhoujie, Haidian Huangzhuang, Zhichunli, Shaoyaoju, Liangmaqiao, Jinsong, Songjiazhuang, Hujialou
Line 13: Xizhimen – Dongzhimen
Length: 40 kilometers (25 miles)
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Main Stops: Xizhimen, Wudaokou, Huilongguan, Beiyuan, Shaoyaoju, Dongzhimen
Line 14: West Section: Zhangguozhuang – Xiju; East Section: Shangezhuang – Jintailu
Length: 47 km (29 miles)
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Main Stops: Zhangguozhuang, Garden Expo Park, Dawayao, Guozhuangzi, Dajing, Qilizhuang, Xiju
Line 15: Qinghuadongluxikou – Fengbo
Length: 41 kilometers (25 miles)
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Main Stops: New CIEC, Wangjing
Batong Line: Sihui – Tuqiao
Length: 19 kilometers (12 miles)
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Main Stops: Sihui, Communication University of China, Baliqiao, Guoyuan, Jiukeshu, Tuqiao
Daxing Line: Gongyixiqiao – Tiangongyuan
Length: 22 kilometers (14 miles)
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Yizhuang Line: Songjiazhuang – Yizhuang Train Station
Length: 23 kilometers (14 miles)
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Changping Line: Xierqi – Nanshao
Length: 21 kilometers (13 miles)
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Fangshan Line: Guogongzhuang – Suzhuang
Length: 25 kilometers (16 miles)
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Airport Express Train: Dongzhimen – Beijing Capital International Airport (T2, T3)
Length: 28 kilometers (17 miles)
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Main Stops: Dongzhimen, Sanyuanqiao, Capital Airport