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