Royal Tombs of the Goryeo Dynasty
The Royal Tombs of the Goryeo Dynasty are a group of tombs of members of the Korean Goryeo Dynasty (918 – 1392). == The tombs == The royal tombs are scattered around southwestern North Hwanghae Province, with most of them located within 20 kilometers of Kaesong, the Goryeo capital.
Source: Wikipedia — Royal Tombs of the Goryeo Dynasty (CC BY-SA 4.0)