4

Jewels, Gemstones, and Birthstones

3

David Livingstone

4

Yellowstone National Park

4

Stonehenge, England

3

Rocks and Minerals

3

Caves of the World

4

Maddy's Pennsylvania Diary

4

The Sami People

4

Mount Kilimanjaro, Tanzania

3

Color Shades

4

Maddy's Indiana Diary

4

Maddy's Wyoming Diary

4

The Ghost of Count Otto and the Pumpkin Wizard

4

Maddy's Montana Diary

4

Brandenburg Gate, Germany

4

Maddy's Kentucky Diary

4

Victoria Falls, Zimbabwe/Zambia

3

Cuisines of the World

4

Maddy's Oklahoma Diary

4

Maddy's Michigan Diary

3

Meteorites, Meteoroids, and Meteors

4

Visual Arts & Artists

4

Acropolis, Greece

4

Taj Mahal, India

4

Maddy's Idaho Diary

4

Maddy's Minnesota Diary

4

Maddy's Nevada Diary

3

All About History

4

Petra, Jordan

3

Houses from around the World