Alexander von Humboldt (S01E18)

S01E01 The First Navigators S01E02 Alexander the Great S01E03 Erik the Red and the Discovery of America S01E04 Genghis Khan S01E05 Ibn Battuta (in Marco Polo's footsteps) S01E06 The Great Junks S01E07 Vasco da Gama S01E08 The Taxis and the first Postal System S01E09 The Pinzon Brothers (The Hidden Side of Christopher Columbus) S01E10 Amerigo Vespucci S01E11 Ferdinand Magellan and del Cano S01E12 Cabeza de Vaca S01E13 Vitus Bering S01E14 Louis Antoine de Bougainville and the Pacifique S01E15 Bruce and the Nile S01E16 La Condamine S01E17 James Cook S01E18 Alexander von Humboldt S01E19 Lewis & Clark S01E20 Stuart & Burke and Australia S01E21 Stanley & Livingstone S01E22 Roald Amundsen and the South Pole S01E23 Alexandra David-Néel in Tibet S01E24 Piccard from the Mountain Tops to the Depth of the Sea S01E25 Up to the Peaks S01E26 Up to the Stars