Take note: Google Maps will not get the job done properly in Korea, so I really suggest that you put in Naver Maps or Kakao Maps to find the closest station. Virtually all subway entrances are lined by staircases close to the sidewalk, in addition to a yellow prepare symbol. https://tourgangnamkaraoke78887.blogscribble.com/34280356/the-2-minute-rule-for-night-of-gangnam-korea