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3. Seoul Incheon, South Korea
If the 72-hole golf course at this seven-year-old South Korean airport is any indication, your experience at Seoul Incheon will be both relaxing and enjoyable. Passengers can also take advantage of the on-site hair salon, a children's play room and a business center with overseas shipping. The airport's Web site even maintains a list of activities by the number of hours a passenger must wait. If you're within eight hours of a flight, try using the shower and massage services.
(source: Forbes)