Capital Cities and Tombs of the Ancient Koguryo Kingdom
The site includes archaeological remains of three cities and 40 tombs: Wunüshan City, Guonei City and Marudushan City, of which 14 are royal tombs and 26 are tombs of nobles. They all belong to the Koguryo culture. Koguryo was named after the dynasty that ruled parts of northern China and the northern half of the Korean Peninsula from 277 BC to 668 AD. Wunüshan City has only been partially excavated. Guonei City is located in modern Ji'an City and served as a "secondary capital" after the main capital of Koguryo was moved to Pyongyang. Marudushan City was one of the capitals of the Koguryo Kingdom and retains many remains, including a large palace and 37 tombs. The ceilings of some of the tombs are very elaborate and cleverly designed to cover a wide space without pillars and to withstand the heavy weight of the stone or earth piles above.