Cheoin Fortress
673 Cheorinseong-ro, Namsa-eup, Cheoin-gu, Yongin-si, Gyeonggi-do
A Goryeo Dynasty earthen fortress located in Namsa-eup, Yongin, famous as the site where Korean forces defeated the Mongol army during their second invasion in 1232. Built on a natural hill at 70.9m …