4

Maddy's Oklahoma Diary

3

Constellations

4

Niagara Falls

4

Maddy's Washington, D.C. Diary

4

Landmarks of Asia

4

Patsy and Paul at the Pyramids in Egypt

4

The Statue of Liberty

4

Chip's Tips on Nigeria

4

Maddy's Pennsylvania Diary

4

Chip's Tips on China

4

Gateway Arch

4

Maddy's New Hampshire Diary

4

Buckingham Palace, London

4

Chip's Tips on Brazil

4

Maddy's New York Diary

4

Chip's Tips on Algeria

3

Isthmuses of the World

4

Stonehenge, England

4

Maddy's Mississippi Diary

4

Maddy's Alaska Diary

4

Maddy's Utah Diary

4

Mount Fuji, Japan

3

Marco Polo

4

Chip's Tips on Yemen

3

Harbors of the World

3

Sinkholes of the World

4

Chip's Tips on Niger

3

Valleys of the World

4

Burj Khalifa, United Arab Emirates

4

Big Ben, London