4

Hadrian's Wall, England

4

Maddy's Kansas Diary

4

Chip's Tips on Equatorial Guinea

3

Sinkholes of the World

4

Maddy's North Carolina Diary

3

Constellations

4

Maddy's California Diary

4

Chip's Tips on The Dominican Republic

4

Chip's Tips on United States

4

Maddy's Michigan Diary

3

Mountains of the World

3

Astronauts

4

Chip's Tips on Uganda

4

Maddy's West Virginia Diary

4

Canterbury Cathedral, Canterbury, England

4

Chip's Tips on Thailand

4

Chip's Tips on Laos

4

Petronas Twin Towers, Malaysia

4

Maddy's Texas Diary

4

Maddy's Maine Diary

4

Timbuktu, Mali

4

Chip's Tips on Namibia

4

Pyramids of Giza, Egypt

4

Chip's Tips on India

4

Maddy's Utah Diary

4

Chip's Tips on Canada

4

Mount Fuji, Japan

4

Chip's Tips on Malta

4

Maddy's North Dakota Diary

3

Oceans and Seas of the World