Population: 10,208,302 (2009 estimate)
Land Area: 233.7 square miles (605.2 sq km)
Average Elevation: 282 feet (86 m)
The view of Hyangwonjong Pavilion Lake.
The following is a list of nine important facts to know about Seoul, South Korea:
1) Seoul was known by a number of different names. The name Seoul originated from the Korean word for capital city, Seoraneol. The name Seoul is interesting however because it has no matching Chinese characters, instead a Chinese name for the city(汉城 Han Cheng), which sounds similar has recently been chosen.
2) Seoul has been continuously settled for over 2,000 years and it is believed that the city was first founded in 18 B.C.E by the Baekje, one of the Three Kingdoms of Korea. The city also remained as the capital of Korea during the Joseon Dynasty and the Korean Empire. During Japanese colonization of Korea in the early 20th century, Seoul became known as Gyeongseong.
3) In 1945, Korea gained its independence from Japan and the city was renamed Seoul. In 1949, the city separated from Gyeonggi Province and it became a "special city." In 1950 however, North Korean troops occupied the city during the Korean War and the entire city was nearly destroyed. On March 14, 1951, United Nations forces took control of Seoul and since then, the city has rebuilt and grown considerably.
4) Today, Seoul has been the capital city for more than 600 years. Seoul is still considered a special city, or a direct controlled municipality, in that it as a city has a status equal to that of a province. This means that it has no provincial government controlling it; rather the federal government of South Korea controls it directly.
5) Seoul has become the headquarters for many international companies. Currently it is the headquarters of companies like Samsung, LG, Hyundai and Kia. In addition to its large multinational companies, Seoul's economy is focused on tourism, building and manufacturing. The city is also known for its shopping and the Dongdaemun Market, which is the largest market in South Korea, is located in Jongno-gu district. Seoul is has more than 100 museums from the prominent National Museum of Korea to the outdoor museums, such as Bukchon Hanok Village, which display traditional Korean houses and artifacts. The metropolitan area also has six major parks, including the Seoul Forest; Cheonggyecheon; and with the backdrop of Seoul’s skyline, Namsan Park. Seoul has hosted important global events too, including the 1986 Asian Games, 1998 Summer Olympics, 2002 FIFA World Cup and G-20 Summit in November 2010.
The night view of Dongdaemun Market.
6) Due to its very large population and relatively small area, Seoul is known for its population density which is about 44,776 people per square mile (17,288 people per sq km). As such, much of the city consists of dense high rise apartment buildings. Mostly all of Seoul's residents are of Korean descent, although there are some small groups of Chinese and Japanese.
7) Located in the northwestern region of South Korea (map). The Han River bisects the city in half, with most of the cultural and historical sites located in the northern region and the financial center in the south(which was previously used as a trade route to China and helped the city grow). The Han River is no longer used for navigation however because its estuary is at the border between North and South Korea. Seoul is surrounded by several mountains but the city itself is relatively flat because it is on the Han River plain.
Night view of Han river.
8) Seoul is divided into 25 administrative divisions called gu. Each gu has its own government and each is divided into several neighborhoods called a dong. Each gu in Seoul varies in both size and population and Songpa has the largest population. Seocho is the gu with the largest area in Seoul.
9) The climate of Seoul is considered both humid subtropical and humid continental (the city lies on the border of these). Summers are hot and humid and the East Asian monsoon has a strong impact on Seoul's weather from June to July. Winters are usually cold and dry, although the city gets an average of 28 days of snow per year. The average January low temperature for Seoul is 21˚F (-6˚C) and the average August high temperature is 85˚F (29.5˚C).
Source from : http://geography.about.com/od/southkorea/a/Ten-Facts-About-Seoul-South-Korea.htm
http://traveltips.usatoday.com/things-seoul-korea-12599.html