Myeoncheoneupseong Walled Town, Dangjin (당진면천읍성)

Since the ancient days, the city of Dangjin was where an important sea route to China existed along with Seosan and Taean. Not only was it an essential trading post with China, it was also a critical military hub. Myeoncheoneupseong Walled Town is widely known to have been constructed in the 16th year of King Chungnyeol's reign in the Goryeo Dynasty (1290) but many believe that it had actually existed ever since the early Baekje period for the purpose of stopping foreign invasions. Myeoncheoneupseong was a fortress that had four main gates in the east, west, south and north.