Jŏngbang, the fortress was built for the defence of the Koguryo capital of Pyongyang.
Rebuilt in 1632 by Kim Ja-jeom, the fortress skillfully uses the surrounding cliffs by cutting down the outer slope and winding around the cliffs and ridges,[1] to give a fortress surrounded by over 12 kilometres of 6-metre high stone walls, which extend to over ten metres tall in some places.
[1] Inside the walled fortress, there are the ruins of commander's posts, barracks, arsenals, armories, granaries and storehouses.
[2] The Sŏngbul Temple, founded in 898 and containing some of the oldest wooden buildings in North Korea, is located within the fortress' walls.
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