Wonsan. Wonsan, previously known as Wonsanjin (?????????), is a port city and naval base located in Kangwon Province, North Korea, on the eastern side of the Korean Peninsula, on the Sea of Japan. It is the provincial capital. The port was opened by Japanese forces in 1880.

Pyongyang. Pyongyang is the capital and largest city of North Korea. According to the 2008 population census, it has a population of 3,255,288. Pyongyang is located on the Taedong River about 109 kilometers upstream from its mouth on the Yellow Sea. Pyongyang is a directly administered city with a status equal to that of the North Korean provinces.