Boeun Samnyeonsanseong Fortress

Samnyeongsanseong Fortress was built during the Silla dynasty. The sprawling stone walls stretch 1.7 kilometers in length with x_heights and x_widths of 13-20 and 8-10 meters respectively. The name of the fortress comes from the time it took to complete the construction, three years ("sam nyeon" in Korean). The fortress was the site of many battles between Silla and Baekje during the Three Kingdoms Period.

Address

104, Seongju 1-gil, Boeun-gun, Chungcheongbuk-do

Website

https://ncms.nculture.org/ https://archive.chungbuk.re.kr/

Map

Naver Map · Google Maps (Naver/Kakao navigate best in Korea)

Source: Korea Tourism Organization official English tourism database. Opening hours and details can change — check the official website before visiting.