3

John Cabot

3

John Smith

4

Buckingham Palace, London

3

Astronauts

4

Belém Tower

4

Chip's Tips on Canada

4

America in the 20th Century

4

Maddy's Virginia Diary

3

Famous Explorers

4

The Space Needle

4

Maddy's Oregon Diary

3

Edmund Hillary

4

The American Revolution

4

Yellowstone National Park

4

Early North American Settlers

4

Chip's Tips on Papua New Guinea

3

Daniel Boone

4

The Tower Bridge, London

4

Maddy's Colorado Diary

4

Maddy's Texas Diary

4

Maddy's Tennessee Diary

4

Maddy's Michigan Diary

4

Maddy's Massachusetts Diary

4

Maddy's Florida Diary

4

Gorillas and Other Primates

4

Maddy's Washington, D.C. Diary

4

Chip's Tips on Botswana

3

Space Exploration

4

Maddy's Maryland Diary

1

Jan and Jim