The Korean Dolmen Sites, specifically the Gochang, Hwasun, and Ganghwa dolmen sites, are remarkable historical landmarks in South Korea. These sites, which feature hundreds of stone dolmens used as grave markers and for ritual purposes during the first millennium BCE, reflect the rich megalithic culture of the Korean Peninsula. Recognized for their cultural significance, they were inscribed as a UNESCO World Heritage Site in 2000. The dolmens are invaluable for understanding the social and ceremonial practices of that era, and they also provide insights into the stone quarrying, transportation, and construction techniques of the time. The preservation and study of these sites offer a window into the ancient history and cultural heritage of Korea.