Excursions Along The Wall. The wall, which follows the ridges of Baegak (Bugaksan), Naksan (Naktasan), Namsan (Mongmyeoksan) and Inwangsan, the four main mountains surrounding the center of Seoul, has been constantly managed since its initial construction in 1396.
The Seoul City Wall was originally built in 1396, surrounding Hanyang (present-day Seoul) during the Joseon Period (1392-1987). The wall stretches for 18.6km along the ranges of Bugaksan (Mt.), Naksan (Mt.), Namsan (Mt.), and Inwangsan(Mt.), and stands at average height of 7~8m. The Seoul City wall consisted of eight gates which were originally built between 1396-1398, but only six remain today. The North, South, East, and West gates of the wall are known as the “Four Great Gates” (Sukjeongmun, Heunginjimun, Sungnyemun, Dongeuimun), while the Northwest, Northeast, Southwest, and Southwest gates are known as the “Four Small Gates” (Changuimun, Hyehwamun, Gwanghwamun, Soeuimun).