'Shrines in Korea

Donggureung (East Nine Tombs) is a burial ground of Joseon Dynasty kings and queens. It lies in Guri city, Gyeonggi-do, and is so named because there are nine mounds visible (although more than two dozen members of royalty are buried here). It is designated as Historic Site no. 193.'

From:
www.wiki.galbijim.com/Donggureung