3
Famous Explorers
3
Roald Amundsen
3
Jacques Cartier
3
Isthmuses of the World
3
Jacques Cousteau
3
Christopher Columbus
3
Francis Drake
3
Edmund Hillary
3
Magnetism
3
John Smith
3
Sacagawea
3
Samuel de Champlain
3
Astronauts
3
Juan Ponce de León
3
James Cook
3
Ferdinand Magellan
3
Marco Polo
3
Daniel Boone
3
David Livingstone
3
Ibn Battuta
3
John Cabot
4
Table Mountain, South Africa
3
Amerigo Vespucci
4
Maddy's Iowa Diary
4
Maddy's Maryland Diary
3
Leif Erikson
3
Vasco da Gama
3
Zheng He
3
Neil Armstrong