3

Samuel de Champlain

3

Coastal Plains of the World

2

Treeless Plains! Steppe

4

The Plains Indians People

4

Serengeti, Tanzania

4

Colosseum, Italy

3

Valleys of the World

4

Arc de Triomphe, France

4

Maddy's Missouri Diary

4

Ngorongoro Crater, Tanzania

4

Maddy's North Dakota Diary

3

Venus

4

Maddy's South Dakota Diary

4

Belém Tower, Portugal

4

Geometric Shapes

4

Maddy's Georgia Diary

4

Maddy's Oklahoma Diary

4

Maddy's Vermont Diary

4

Mount Rushmore

3

Mercury

4

Maddy's Maine Diary

3

Amazing Earth - Part 1

4

Tundra

2

Frozen Ground! Tundra

4

Maddy's Kansas Diary

2

Landforms

4

Maddy's Arkansas Diary

4

Chip's Tips on Laos

4

Maddy's Delaware Diary

4

Chip's Tips on Canada