Metro, Seoul, South Korea

Archaeological findings show that the Korean Peninsula was occupied by the Lower Paleolithic period. Korean history begins with the founding of Gojoseon in 2333 BC by the legendary Dan-gun. Following the unification of the Three Kingdoms of Korea under Silla 668 AD, Korea went through the Goryeo Dynasty and Joseon Dynasty as one nation until the end of the Korean Empire in 1910, when Korea was annexed by Japan. After liberation and occupation by Soviet and U.S. forces at the end of World War II, the nation was divided into North and South Korea. The latter was established in 1948 as a democracy, though political turmoil, and periods of military rule and martial law, were to characterize much of the period until the foundation of the Sixth Republic in 1987.
After the invasion of South Korea by forces from the North on 25 June 1950, the resulting war between the two Koreas ended with an Armistice Agreement, but the border between the two nations is the most heavily fortified in the world. After the war, the South Korean economy grew significantly and the country had transformed into a major economy, a full democracy, and a regional power in East Asia.
South Korea is a presidential republic consisting of sixteen administrative divisions and is a developed country with a very high standard of living. It is Asia's fourth largest economy and the world's 15th (nominal) or 12th (purchasing power parity) largest economy. The economy is export-driven, with production focusing on electronics, automobiles, ships, machinery, petrochemicals and robotics. South Korea is a member of the United Nations, WTO, OECD and G-20 major economies. It is also a founding member of APEC and the East Asia Summit.