3

John Smith

3

John Cabot

4

Gorillas and Other Primates

4

Chip's Tips on Papua New Guinea

4

Maddy's North Carolina Diary

4

After the American Civil War

4

Maddy's Tennessee Diary

4

Chip's Tips on Canada

4

Maddy's Maine Diary

4

Grand Canyon

4

Maddy's Maryland Diary

4

America in the 20th Century

4

Maddy's Oregon Diary

4

Maddy's Florida Diary

3

Edmund Hillary

4

Chip's Tips on Botswana

4

Buckingham Palace, London

4

The Space Needle

3

Astronauts

4

Early North American Settlers

4

Maddy's Washington, D.C. Diary

4

The American Revolution

3

Vasco da Gama

4

Maddy's Colorado Diary

3

Famous Explorers

3

Daniel Boone

4

Maddy's Texas Diary

4

Maddy's Massachusetts Diary

4

Maddy's Michigan Diary

3

Space Exploration