4

Victoria Falls, Zimbabwe/Zambia

4

Niagara Falls

4

Maddy's Idaho Diary

3

Nyaminyami The Spirit of the River God

4

Maddy's Arkansas Diary

3

Valleys of the World

4

Chip's Tips on Brazil

4

Chip's Tips on Zambia

4

Maddy's West Virginia Diary

4

Maddy's Georgia Diary

4

Maddy's South Dakota Diary

4

Maddy's New York Diary

3

Fjords of the World

3

Continents of the World

4

Chip's Tips on South Africa

4

Sources of Energy

4

Landmarks of the United States

2

US Landmarks

4

Maddy's Montana Diary

4

Chip's Tips on Switzerland

4

Chip's Tips on Ghana

4

Maddy's Alabama Diary

4

Chip's Tips on Venezuela

4

Chip's Tips on Jamaica

4

Maddy's Ohio Diary

3

David Livingstone

4

Chip's Tips on United States

4

Maddy's Wisconsin Diary