Seoul City Wall

The city wall of Seoul was built in 1396 around the city during the Joseon Dynasty (1392-1897). It extends for 18.6 km along the mountain ranges of Bugaksan, Mount Naksan, Namsan Mountain and Inwangsan Mountain. There are originally eight gates built between 1396-1398 AD, but only six of them still stand to this day. The northern, southern, eastern and western wall gates are known as the "Four Great Gates", while the northwest, northeast, southwest and southwest gates are known as the "Great Four Gates". The four sub gates.