Daereungwon Tomb Complex, also known as Tumuli Park, is a royal burial ground featuring 23 massive burial mounds of kings and nobles from the ancient Silla Kingdom. Spanning 125,400 square meters, the grass-covered tumuli offer a unique sight resembling giant green hills. Visitors can enter Cheonmachong Tomb to see the interior chamber and replicas of excavated treasures. The area is illuminated at night creating a magical atmosphere for evening walks.