page_title: Seoul City Route 21
section_title: Stopovers
hierarchical_section_title: Seoul City Route 21 / Stopovers
caption_attribution_description: 한국어: 서울역과 한강대로 (서울로 7017에서 촬영, 2017) English: Seoul Station and Hangang-daro (photographed in Seoullo 7017, 2017)
context_page_description: Seoul Metropolitan City Route 21 is an urban road located in Seoul, South Korea. With a total length of 24.2 km, this road starts from the Siheung Intersection in Geumcheon District, Seoul to Yeonsinnae Station in Eunpyeong District. This route is a part of Asian Highway 1.
context_section_description: Seoul
  Geumcheon District - Gwanak District / Guro District - Dongjak District / Yeongdeungpo District - Dongjak District - Yongsan District - Jung District - Jongno District - Seodaemun District - Eunpyeong District
caption: Hangang-daero (on the right corner, you can see Seoul Station entrance.
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