Gongsanseong Fortress, Gongju

A Baekje mountain fortress located in Gongju, Chungcheongnam-do, the capital-city fortress of the period when Baekje, having lost Hanseong, moved its capital to Ungjin. The fortress walls, built along the ridge beside the Geumgang River, are well preserved, showing that it was a center of defense and politics. Passing through the era of King Muryeong, Baekje raised its national strength once again here. As one of the Baekje Historic Areas, it has been inscribed on the UNESCO World Heritage List.