The Pothong Gate in Pothongmun-dong, Central District, Pyongyang, is preserved as a historical relic showing the fine architectural skills of Chongroan ancestors. It was erected when the Walled City of Pyongyang, the capital of Chonguryo, was built around the mid-6th century. The present gate was rebuilt in 1473. As a gateway to northwest Walled City of Pyongyang, it was considered a vantage point in the light of national defence and transportation in the periods of Chonguryo