Eden Walk

National Geographic Explorer Paul Salopek began his continent-spanning walk in Ethiopia in January 2013. Since then, his Out of Eden Walk, tracing humankind’s journey out of Africa, has crossed 21 countries, some 14,200 miles on foot from the Middle Eastern shores of the Red Sea to the Pacific Rim of Japan. Host Marco Werman speaks with Salopek as he begins the 13th year of his global trek.