Perennially ranked among the top three airports in the world by Skytrax and the Airports International Council, Seoul's airport is home and hub to award-winning Korean Air and Asiania Airlines as well as a jumping-off point to the continent. With a current capacity of 44 million passengers a year, the main airport was completed in 2001. It competes with Singapore's Changi as well as Hong Kong International.

By Grant Martin @CNNMoneyTech - Last updated November 16 2011: 3:37 PM ET
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These aren't your typical mobile homes. They're swanky, beautifully designed and, well, made out of recycled shipping containers.

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