4

Burj Khalifa, United Arab Emirates

4

An Introduction to the History of the United States of America

4

Chip's Tips on United States

4

History of the United States

2

Map of the United States of America

4

Landmarks of the United States

4

The American Revolution

4

U.S.S. Arizona Memorial at Pearl Harbor

4

Maddy's Nebraska Diary

3

Drainage Basins of the World

4

Maddy's Rhode Island Diary

4

Chip's Tips on Rwanda

3

Passover

4

Maddy's Alaska Diary

4

Famous Americans: Benjamin Franklin

4

Maddy's Washington Diary

4

Chip's Tips on Yemen

4

Maddy's Ohio Diary

4

Chip's Tips on Canada

3

Canyons of the World

4

Maddy's Connecticut Diary

4

Maddy's Vermont Diary

4

Washington Monument

4

Maddy's Arkansas Diary

4

The Tower Bridge, London

4

Famous Americans: Abraham Lincoln

3

Do Your Part

2

Country Flags - North & Central America

3

Glaciers of the World

4

Hadrian's Wall, England