4

Eire of the Desert

4

Eire of the Desert

2

Hot and Dry! Desert

4

Desert

4

Chip's Tips on Chile

4

Maddy's California Diary

4

Chip's Tips on Botswana

4

Maddy's Oregon Diary

4

Chip's Tips on China

4

Chip's Tips on Qatar

4

Polar

2

Ecosystems

4

Timbuktu, Mali

4

Sossusvlei Dunes, Namibia

4

Maddy's Washington Diary

4

Maddy's Arizona Diary

4

Chip's Tips on India

4

Chip's Tips on Yemen

3

The Winklers' Holiday on Zoo Lovers Day

4

Chip's Tips on Mexico

3

Valleys of the World

4

Burj Al Arab, United Arab Emirates

4

Hoover Dam

4

Chip's Tips on Ghana

3

David Livingstone

4

Chip's Tips on South Africa

3

Mars

4

Maddy's Nevada Diary

4

Okavango Delta, Botswana

3

Marco Polo