4

The Dome of Rock, Jerusalem

4

How they work? Rockets

3

Rocks and Minerals

3

Space Exploration

4

Table Mountain, South Africa

4

Maddy's Alabama Diary

4

Eire of the Desert

4

The Sami People

3

Caves of the World

1

Cosas que son Grises

3

St. Patrick's Day

3

Straits of the World

4

Things to See in New York City

3

Isthmuses of the World

4

Maddy's Delaware Diary

4

Tundra

3

Leonardo da Vinci

4

Visual Arts & Artists

3

Individual Sports

4

The Pygmy People

4

Maddy's Massachusetts Diary

4

Maddy's Texas Diary

3

Venus

3

Charles Darwin

4

The Australian Aboriginal People

4

Maddy's Arkansas Diary

4

Maddy's Colorado Diary

4

Maddy's Wyoming Diary

3

Sacagawea

3

Zuri's Launch