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Man quits job to trek from Siberia to London

Nikita Gretsi, 23, a restaurant manager, quit his job and used his life savings to fund a 15,000km wild horse trek from Siberia to London. Despite falling off a cliff, facing -60C temperatures cold enough to freeze the lungs and riding along Russia's precarious "Road of Bones," Nikita said he has had moments of "pure joy."

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