Fortress Wall of Seoul (Hanyang City Wall)

Restored Joseon-era city wall of Seoul – 18 km hiking trail with panoramic views.

The Hanyangdoseong — Seoul's Fortress Wall — is the surviving remnant of the city fortifications of Hanyang, the predecessor city of modern Seoul, built during the Joseon Dynasty (1392–1910). The original wall enclosed the entire city and stretched approximately 18 kilometres. Its sections traverse four mountain ridges within the city: Bugaksan, Naksan, Namsan, and Inwangsan. Today, large portions have been restored and opened as hiking trails, offering breathtaking views of modern Seoul framed by ancient wall towers and gates. The wall is a designated Korean national treasure and an ongoing candidate for UNESCO World Heritage status.