Seoul officially the Seoul Special City, is the capital and largest metropolis of South Korea. Seoul has a population of 9.7 million people and forms the heart of the Seoul Capital Area with the surrounding Incheon metropolis and Gyeonggi province. Seoul was the world's 4th largest metropolitan economy in 2014 after Tokyo, New York City, and Los Angeles. In 2017, the cost of living in Seoul was ranked the 6th highest globally.
With technology hubs centered in Gangnam and Digital Media City, the Seoul Capital Area is home to the headquarters of 14 Fortune Global 500 companies, including Samsung, LG, and Hyundai. The metropolis exerts a major influence in regional affairs as one of the five leading hosts of global conferences; as of 2018, it was ranked 3rd in the world after Singapore (1st) and Brussels (2nd). Seoul has hosted the 1986 Asian Games, 1988 Summer Olympics, 2002 FIFA World Cup (with Japan), and the 2010 G-20 Seoul summit.
Strategically located along the Han River, Seoul's history stretches back over two thousand years, when it was founded in 18 BC by the people of Baekje, one of the Three Kingdoms of Korea. The city has later designated the capital of Korea under the Joseon dynasty. Seoul is surrounded by a mountainous and hilly landscape, with Bukhan Mountain located on the northern edge of the city. As with its long history, the Seoul Capital Area contains five UNESCO World Heritage Sites: Changdeok Palace, Hwaseong Fortress, Jongmyo Shrine, Namhansanseong, and the Royal Tombs of the Joseon Dynasty.
South Korea, a country in East Asia. It possesses the southern segment of the Korean landmass. The nation is lined by the Democratic People's Republic of Korea (North Korea) toward the north, the East (Sea of Japan) toward the east, the East China Sea toward the south, and the Yellow Sea toward the west; toward the southeast, it is isolated from the Japanese island of Tsushima by the Korea Strait. South Korea makes up around 45% of the landmass's property zone. The capital is Seoul (Sŏul).
South Korea points toward North Korea across a neutral territory (DMZ) 2.5 miles (4 km) wide that was set up by the conditions of the 1953 cease-fire that finished battling in the Korean War (1950–53). The DMZ, which runs for around 150 miles (240 km), comprises the 1953 military truce line and generally follows scope 38° N (the 38th equal) from the mouth of the Han River on the west shoreline of the Korean promontory to somewhat south of the North Korean town of Kosŏng on the east coast.
Topographically, South Korea comprises an enormous piece of Precambrian rocks (i.e., more than around 540 million years of age) like stone and gneiss. The nation is generally hilly, with little valleys and restricted waterfront fields. The T'aebaek Mountains run approximately a north-south way along the eastern coastline and toward the north into North Korea, shaping the country's waste gap. From them, a few mountain ranges branch off with an upper east southwest direction. The most significant of these are the Sobaek Mountains, which undulate in a long S-shape across the landmass. None of South Korea's mountains are exceptionally high: the T'aebaek mountains arrive at a rise of 5,604 feet (1,708 meters) at Mount Sŏrak in the upper east, and the Sobek Mountains arrive at 6,283 feet (1,915 meters) at Mount Chiri. The most noteworthy top in South Korea, the wiped out fountain of liquid magma Mount Halla on Cheju Island, is 6,398 feet (1,950 meters) above ocean level.