3

Lakes of the World

4

Lake Malawi, Malawi

2

Lake Day

2

Christmas

4

Maddy's Illinois Diary

4

Maddy's Idaho Diary

4

Maddy's Missouri Diary

4

Chip's Tips on Rwanda

4

Maddy's South Dakota Diary

4

Amphibians

2

Rose and Cole Go Camping

4

Maddy's New Jersey Diary

3

Sinkholes of the World

4

Chip's Tips on United States

2

The Wonderful World of Water

4

Ngorongoro Crater, Tanzania

4

Chip's Tips on Mexico

4

Chip's Tips on Russia

4

Maddy's Pennsylvania Diary

4

Chip's Tips on Honduras

4

Maddy's Connecticut Diary

4

Chip's Tips on India

4

Hoover Dam

3

Amazing Earth - Part 2

3

Bays of the World

4

Chip's Tips on Ghana

4

Maddy's Wyoming Diary

4

Maddy's Montana Diary

3

Amazing Earth - Part 1

4

The Willis Tower