3

Famous Explorers

4

Famous Americans: Thomas Jefferson

4

Famous Americans: Abraham Lincoln

3

Famous People - Part 2

3

Famous People - Part 1

4

Famous Americans: Benjamin Franklin

4

Famous Americans: George Washington

3

Ferdinand Magellan

3

Amerigo Vespucci

3

Zheng He

4

Chip's Tips on Niger

3

Mother Teresa

3

Archipelagos of the World

3

Comets

4

Chip's Tips on Algeria

3

Straits of the World

4

Chip's Tips on Ivory Coast

4

Chip's Tips on Yemen

3

Nelson Mandela

4

Chip's Tips on Russia

3

Isthmuses of the World

4

Chip's Tips on Gabon

4

Chip's Tips on Zambia

4

Chip's Tips on Finland

3

Inventors and Inventions

3

Juan Ponce de León

3

Ibn Battuta

4

Chip's Tips on Libya

3

Isaac Newton

3

James Cook