The castles in the Korean peninsula are classified into two types: mountain castle in a form specific to Korea and upuson with city walls, which are greatly influenced by China, but dominated later in the period.
朝鮮半島の城は、朝鮮固有の形式である山城の他に中国の影響を強く受けた都市城壁を持つ邑城（ウプソン）の2形式があるが時代が下るとともに邑城へと移行した。