Italy
Hwangryong Fortress (Korean: 황룡산성; Hanja: 皇龍山城) is a stone fortress of Goguryeo located in what is now Ryonggang county, Nampo in North Korea. It is designated as "No.37 National Treasure of North Korea". It is about 10-11 metres high, 6-8 metres in width and has a 6.6 kilometre circumference.
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