4

Yellowstone National Park

4

Stonehenge, England

4

Jewels, Gemstones, and Birthstones

3

David Livingstone

3

Meteorites, Meteoroids, and Meteors

3

Canyons of the World

4

Grand Canyon

4

Acropolis, Greece

3

Houses from around the World

4

The Ghost of Count Otto and the Pumpkin Wizard

4

Maddy's Michigan Diary

1

Things That Are Gray

4

Mother's Magnificent Garden

4

Chip's Tips on Malta

4

Maddy's Florida Diary

3

Coral Reefs of the World

3

Sinkholes of the World

4

The Sami People

4

Maddy's Minnesota Diary

4

Chip's Tips on Egypt

3

Coastal Plains of the World

3

Caves of the World

4

The Ghost of Count Otto and the Pumpkin Wizard

4

Charles Bridge, Czech Republic

3

Famous Explorers

3

Valleys of the World

4

The Giant's Causeway, Ireland

4

Taj Mahal, India

4

Maddy's Tennessee Diary

4

Maddy's Idaho Diary