South Korea's currency is the won.
At the current exchange rate (as of Sunday night), a single U.S. dollar is worth about 1,091 won.
It's pronounced wän.
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Here are some more facts you may not know about South Korea:
1. Korean, also called Hangul (한국말), is the official language of both North and South Korea.
2. "Aegukga", often translated as "The Patriotic Song", is the national anthem of South Korea. It was adopted in 1948, the year the country was founded.
3. South Korea has hosted the Olympics one other time. The 1988 Summer Olympics were held in Seoul.
4. Its strongest Olympic sport is judo, in which the country has earned 43 medals. Second, is short track speed skating. South Korean athletes have won 42 medals in the sport.
5. The Flag of South Korea, also known as the Taegukgi (also spelled as Taegeukgi, literally "supreme ultimate flag"), has three parts: a white rectangular background, a red and blue Taeguk, symbolizing balance, in its center, and four black trigrams selected from the original eight, one toward each corner.