South Korea, an East Asian nation on the southern half of the Korean Peninsula, shares one of the world’s most heavily militarized borders with North Korea. It’s equally known for its green, hilly countryside dotted with cherry trees and centuries-old Buddhist temples, plus its coastal fishing villages, sub-tropical islands and high-tech cities such as Seoul, the capital. Incheon, a South Korean city bordering the capital of Seoul, has long been a transportation hub. The ultramodern, massive Incheon International Airport, with railway connections to Seoul, features a casino, spa and golf course. Myeongdong is a dong in Jung-gu, Seoul, South Korea between Chungmu-ro, Eulji-ro, and ... In 2011, 2012 and 2013, Myeong-dong was listed as the ninth most expensive shopping street in the world. Jeju province encompasses the South Korean island of Jeju in the Korea Strait. It's known for its beach resorts and volcanic landscape of craters and cavelike lava tubes. Hallasan Mountain, a dormant volcano, features hiking trails, a crater lake at the 1,950m summit and nearby Gwaneumsa Temple. The Geomunoreum Lava Tube System includes 7km-long Manjanggul Cave, created centuries ago when Hallasan was still active.