Criterion (ii): The Gyeongju Historic Areas contain a numberof sites and monuments of exceptional significance in the development of Buddhist and secular architecture in Korea. AuthenticityThe overall complex of the Gyeongju Historic Areas maintains a high degree of authenticity, as do the individual elements, which are largely archaeological sites and carvings. A 500 m buffer zone (Historic Cultural Environment Protection Area) has been established around each of the historic areas, under the Cultural Heritage Protection Act. The CHA and Gyeongju City have continued to purchase the land surrounding the designated heritage areas to ensure better protection and connectivity between the areas. Management plans are in force for the Gyeongju Historic Areas, which address the preservation of the original status of the Historic Areas, preservation of the surrounding environment of the Historic Areas, use of the Gyeongju Historic Areas for the education of citizens and field studies for students.