3

Coastal Plains of the World

2

Treeless Plains! Steppe

4

The Plains Indians People

4

Colosseum, Italy

3

Mercury

3

Genghis Khan

3

Lazy Jack

4

Chip's Tips on Rwanda

4

Maddy's Oklahoma Diary

4

Charles Bridge, Czech Republic

4

Serengeti, Tanzania

4

Early Native Americans

4

Chip's Tips on Yemen

4

Belém Tower, Portugal

4

Maddy's Nebraska Diary

4

Brandenburg Gate, Germany

4

Maddy's Texas Diary

4

Maddy's Missouri Diary

3

Zhen Learns About Inflation

4

Chip's Tips on Kenya

3

Puppet Power!

3

Amazing Earth - Part 2

4

Chip's Tips on Canada

3

Venus

4

Indigenous People

4

Maddy's South Dakota Diary

4

Maddy's Wyoming Diary

4

Eiffel Tower, France

4

Chip's Tips on Nigeria

4

Acropolis, Greece