Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
봉건성은 중세 시대의 중요한 건축물입니다.Bonggeonseong-eun jungse sidae-ui jungyohan geonchukmul-imnida.The feudal castle is an important architectural structure of the medieval era.