Rawan has only once before left the tiny Palestinian territory, when she went on a study trip to the United States.

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Lucent retirees Delta and Thomas Greene suffered through a week of cold-water showers on their trip to study giant clams of the Tongan Islands.

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In a study of "every possible trip combination" over 11, 000 routes, CheapAir dissected more than 560 million fare-search records from 2012's 366 days.

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On a trip to Pompeii to study the Temple of Apollo, they stayed in a family-run hotel and dined on wonderful food in the hotel's courtyard at night.

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The Terps were able to spread out and held study hall during the 4-hour trip.

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And researchers from the University of Colorado, Denver, are planning a high-altitude research trip to Bolivia with 24 study participants.

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The family will need to make the trip three times for the study, which is sponsored by biopharmaceutical company Shire PLC.

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It's the most-asked question travelers pose, and as spring break approaches, it helps to know that a recent study puts the average answer for a domestic trip at roughly seven weeks.

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He already seen many of his squad in action since the Croatia defeat and postponed a research trip to the US, where he planned to study Seattle Seahawks coach Mike Holmgren's training techniques.

BBC: SPORT | Football | Internationals | McClaren quizzes squad over slump