2 Best Sights in Seoul, South Korea

Running through Bugaksan mountain, the Baegak Trail begins and ends at two minor gates of the Seoul City Wall, from Changuimun to Hyehwamun. The trail reaches a height of 342 meters (1,122 feet) and takes about three hours to complete. The trail has a lot of history: it's where North Korean Special forces infiltrated Seoul in 1968. As a result of this history, visitors to the area are required to bring identification in order to enter. Highlights of the trail include the January 21 Incident Pine Tree, a tree with traces of bullets fired during a gunfight with North Korean forces, and Malbawi Observatory, a scenic viewpoint from which both Seongbuk-gu and Jongno-gu are visible.

Constructed in 1396 to protect the capital from invasion, Hanyangdoseong is an 18.63 km-long (11.58 mile-long) fortress wall punctuated with eight gates that took 197,400 people 98 days to complete. Although many sections of the colossal wall have been lost to time, about 70 percent of the wall and six of the gates remain intact today. The wall was built in harmony with the city’s natural topography by lining the ridges of Seoul’s four main mountains, making the trails following the wall today a great way to explore Seoul from the ground up. Two sections of the wall lie in the Dongdaemun area and extend north and south from Heunginjimun Gate. 

The northern Naksan Mountain Trail follows the remnants of the wall for 2.1 km (1.3 miles) over Naksan Mountain to Hyehwamun Gate, and the southern Heunginjimun Gate Trail extends 1.8 km (1.1 miles) past Dongdaemun History & Culture Park and Dongdaemun Design Plaza to Gwanghuimun Gate. Whichever trail you take, a good place to start is with a visit to the Seoul City Wall Museum set in Dongdaemun City Wall Park.