Ganghwa Fortress
San 3, Gukhwa-ri, Ganghwa-eup, Ganghwa-gun, Incheon (Gukhwa-ri, Sinmun-ri, Gwancheong-ri, Namsan-ri)
A Goryeo Dynasty fortress surrounding Ganghwa-eup, built in 1232 when the capital was relocated to Ganghwa Island during the Mongol invasions. Originally consisting of inner, middle, and outer walls,…