A biography of Sir Ernest Shackleton, the daring, charismatic Antarctic explorer who fell short of his goal of crossing Antarctica, but accomplished a far greater feat by bringing every member of his crew back alive.
A biography of the man who explored the St. Lawrence, Ohio, Illinois, and Mississippi rivers, and who claimed America's heartland for King Louis XIV and France.
Describes the ice cap above the northernmost shores of Asia, North America, and Greenland, and the expeditions that criss-crossed it in search of the North Pole.
Tells the story of how Europeans got to know the size and shape of the northern part of the New World, an area discovered over a period of four centuries.
Explores twenty questions about the westward expansion of the U.S., covering such topics as the Louisiana Purchase, the Mexican-American War, and the Oregon Trail.