4

Famous Americans: Abraham Lincoln

4

Famous Americans: Benjamin Franklin

3

Famous Explorers

3

Famous People - Part 2

4

Famous Americans: Thomas Jefferson

4

Famous Americans: George Washington

3

Famous People - Part 1

4

Chip's Tips on The Dominican Republic

3

Marco Polo

4

Chip's Tips on Gabon

3

James Cook

4

Chip's Tips on Namibia

3

Wetlands of the World

3

Lakes of the World

4

Chip's Tips on Jamaica

3

Rabindranath Tagore

3

Pablo Picasso

4

Chip's Tips on Botswana

4

Chip's Tips on Zambia

3

Thurgood Marshall

3

Harriet Tubman

3

Samuel de Champlain

3

Islands of the World

3

Meteorites, Meteoroids, and Meteors

4

Chip's Tips on Equatorial Guinea

4

Chip's Tips on Brazil

3

Mountains of the World

3

Martin Luther

3

Jacques Cartier

3

Zheng He