Hongik University Station and Gangnam Station took the No. 2 and No. 3 slots, respectively, on Seoul Metro’s list of the top 10 stations by average daily ridership.

The Seoul subway is inexpensive and widespread ... have a pretty smooth subway experience. The signs, maps and recordings in the stations are in Korean and English. You can buy individual tickets ...

GTX route map [NAM JEONG-HYEON] But the project has ... below the ground — far deeper than the typical Seoul subway station — using a steep escalator and stairs. The interior of the train ...