Ruins of an impressive fortress, developed in the time period from the early 5th century AD to 1675. Walls are 10 – 11 m high, 6 – 8 m wide and have a circumference of 6.6 km. Most of the walls are built on the mountain ridges.
|Location, GPS coordinates:||38.8804 N 125.3211 E|
|Categories:||Fortresses and forts|
|Rating:||(3.5 / 5)|
|Where is located?||Asia, North Korea, South Pyongan, Ryonggang|