The Gocheok Sky Dome is a domed baseball stadium located in Gocheok-dong, Seoul, South Korea. It is the home ballpark of KBO club Kiwoom Heroes. The stadium is primarily used for baseball and has a capacity for 16,744 spectators for baseball games. The stadium replaced Dongdaemun Baseball Stadium and opened on 15 September 2015. It also serves …The Gocheok Sky Dome is a domed baseball stadium located in Gocheok-dong, Seoul, South Korea. It is the home ballpark of KBO club Kiwoom Heroes. The stadium is primarily used for baseball and has a capacity for 16,744 spectators for baseball games. The stadium replaced Dongdaemun Baseball Stadium and opened on 15 September 2015. It also serves as a concert venue, with a capacity for around 25,000 spectators.