Nov 27, 2012 (Morning Edition) — In 2009, a British man began a quest to visit every country in the world. To make it interesting, he set out to do it without flying -- something never done before. This week, after nearly four years of traveling by train, taxi, bus and boat, Graham Hughes accomplished that feat. He filled four full passports, trekking through every nation and disputed state, and ending in South Sudan -- a country that didn't exist when he started out.
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