Mausoleum of King Kongmin
The Mausoleum of King Kongmin, more correctly known as the Hyonjongnung Royal Tomb, is a 14th-century mausoleum located in Haeson Village, in the city of Kaesong, North Korea. It is one of the Royal Tombs of the Goryeo Dynasty.
Source: Wikipedia — Mausoleum of King Kongmin (CC BY-SA 4.0)