4

Chip's Tips on Ivory Coast

3

Coastal Plains of the World

3

Wetlands of the World

4

Maddy's New Jersey Diary

4

Maddy's Virginia Diary

4

Chip's Tips on United States

3

Isthmuses of the World

4

Sossusvlei Dunes, Namibia

4

Chip's Tips on Chile

3

Capes and Peninsulas of the World

4

Mont-Saint-Michel, France

4

Chip's Tips on Canada

3

Bays of the World

4

Maddy's Arkansas Diary

4

Maddy's Oregon Diary

4

Maddy's South Carolina Diary

4

Maddy's Georgia Diary

3

Vasco da Gama

3

Gulfs of the World

4

Timbuktu, Mali

4

Dr. Why-Physics

2

Landforms

3

Archipelagos of the World

3

Amazing Earth - Part 2

4

Maddy's Montana Diary

4

The Giant's Causeway, Ireland

4

Chip's Tips on Nigeria

4

Maddy's New Hampshire Diary

4

Maddy's California Diary

4

Maddy's Texas Diary