Tomb No. 3 lies in Oguk-ri, Anak County, South Hwanghae Province. The mausoleum of King Kogukwon of Koguryo, it was built in the mid-4th century. It is the largest tomb with murals from the period of Koguryo that has been excavated to date. As it is of elegant architectural style, large in size and rich in mural contents, it constitutes part of the precious cultural heritage of Korea.
Through the murals one can see the history, architecture, painting, music, dance, martial arts and dining of Koguryo.
The tomb was registered as a world cultural asset by UNESCO.