4

Eire of the Desert

4

Eire of the Desert

4

Desert

2

Hot and Dry! Desert

4

Maddy's Nevada Diary

4

Maddy's Oregon Diary

4

Maddy's California Diary

4

Chip's Tips on Chile

4

Maddy's Arizona Diary

4

Chip's Tips on China

4

Chip's Tips on South Africa

4

Chip's Tips on Nigeria

3

Continents of the World

4

Chip's Tips on Qatar

4

Maddy's Utah Diary

3

Mars

3

The Winklers' Holiday on Zoo Lovers Day

3

Valleys of the World

3

The Winklers' Holiday on Zoo Lovers Day

4

Chip's Tips on Mexico

4

Patsy and Paul at Uluru in Australia

3

Marco Polo

4

Burj Al Arab, United Arab Emirates

3

The Mystery of the Fairy Circles

4

Chip's Tips on Botswana

4

Polar

4

Chip's Tips on Egypt

4

Maddy's New Mexico Diary

3

Coastal Plains of the World

4

Maddy's Washington Diary