3

John Cabot

3

John Smith

4

Maddy's Virginia Diary

4

Grand Canyon

4

Maddy's Michigan Diary

3

Daniel Boone

4

America in the 20th Century

4

Chip's Tips on Botswana

4

Things to Do in Central Park

4

Chip's Tips on Canada

3

Vasco da Gama

3

Edmund Hillary

4

Yellowstone National Park

4

Maddy's North Carolina Diary

1

Jan and Jim

4

The Space Needle

4

Buckingham Palace, London

4

Maddy's Washington, D.C. Diary

4

Belém Tower, Portugal

4

Early North American Settlers

4

Maddy's Tennessee Diary

4

Chip's Tips on Papua New Guinea

3

Astronauts

4

Maddy's Maryland Diary

4

Maddy's Oregon Diary

4

Maddy's Maine Diary

4

Gorillas and Other Primates

4

Maddy's Texas Diary

4

Maddy's Massachusetts Diary

4

The Tower Bridge, London