[Chungcheongbuk-do] Cheongju Sangdangsanseong Fortress (청주 상당산성)
Hello! Here is the detailed information for ‘Cheongju Sangdangsanseong Fortress (청주 상당산성)’. 💡 Overview Sangdangsanseong Fortress in Cheongju, Chungcheongbuk-do is a fortress built along the natural slopes close to downtown Cheongju. It was comprehensively improved in 1596 (29th year of King Seonjo’s reign) during Imjinwaeran (Japanese invasion of Korea in 1592) and later remodeled into…