Juan Villarino is a man in thrall to the siren song of the road. Since running away from a conventional life and career in Argentina in 2001, when he was 23, he reckons he has hitchhiked about 100,000 miles through 90 countries, or enough to circumnavigate the globe four times. For a stretch of his latest trip, through Africa, with his partner, Laura Lazzarino, he was joined by the writer Wes Enzinna. In an article that’s by turns admiring and inquiring, Enzinna reports for The New York Times Magazine on what he learned. His piece (with photographs by Brent Stirton) is one of four accounts of journeys published in a special “Voyages” issue of the magazine.