It got its name because there are three royal tombs side by side at the western foot of Namsan Mountain.
It is said to be the tomb of three kings of the Park family, including the 8th King Adala, the 53rd King Sindeok, and the 54th King Gyeongmyeong.
The tombs are all circular in shape. The tomb of King Sindeok in the middle has traces of robbery.
During an internal investigation, it was discovered that part of the wall of the stone room was painted with a color like a folding screen.
It is not a mural, but it drew attention as it was first discovered in a Silla tomb in Gyeongju, where no mural was painted. There is a winding pine forest around Samneung, so it is always beautiful.

-Admission fee: Free