Yongsan Train Station
Beautiful Seoul boasts several major train stations, and the Yongsan railway station is definitely among the busiest ones. Nestled in the eponymous district, the station boasts a great location next to the famous Yongsan Electronics Market. In fact, two buildings are adjoined, so if you have some time to kill before departure and not in the mood to check out any of the station's facilities, feel free to enjoy a walk around this huge retail area housing over 5000 stores. Just don't get lost, it might make catching your train a bit challenging.
The station's building is also rather spacious and very well equipped, inside you can find everything you would expect from a modern train station. It is operated by Korail, boasts 6 platforms & 13 tracks, and services Honam, Gyeongwon, and Gyeongbu lines.