Korea is a 750-mile-long (1,200-kilometer-long) peninsula located in the easternmost part of the Asian continent. Today, the country is split into South and North Korea, but in the minds of most of its citizens, it remains a single nation that cannot be divided.
South Korea has many mountains, but they are small compared with others around the world. Over millions of years, their peaks have been worn down by rain and wind. Most summits are below 3,300 feet (1,000 meters).
On South Korea's Jeju Island and along a narrow strip in the south, high humidity and rainfall give rise to tropical evergreen jungles. The peninsula is also surrounded by about 3,000 volcanic islands.