South Korea's cultural relics No. 212 Shangdang Mountain City, located in the Shangdang District of Qingzhou City, North Chungcheong Province, South Korea, is the most representative stone city in South Korea, is a large Baogu-style stone mountain city with a circumference of 4 kilometers and a height of 3 to 4 meters, the name is derived from the Three Kingdoms era Baiji period Shangdang County, There is a mountaineering road that can be built with the mountain city about 2 hours of itinerary, and the tour guide arranged the time is tight, so we walked for half an hour and ended the tour.