Norway: Tromsø is located 217 miles north of the Arctic Circle. By the end of the 19th century, the small Norwegian town had become a major Arctic trade center from which many expeditions originated. Explorers like Roald Amundsen, Umberto Nobile and Fridtjof Nansen made use of the know-how in Tromsø on the conditions in the Arctic, and often recruited their crews in the city.