4

Maddy's Arkansas Diary

4

Maddy's Oregon Diary

4

Chip's Tips on Seychelles

4

Chip's Tips on Nigeria

4

Chip's Tips on Mexico

2

Frozen Ground! Tundra

4

Chip's Tips on Madagascar

4

Maddy's South Dakota Diary

2

Treeless Plains! Steppe

4

Maddy's Pennsylvania Diary

2

Hot and Dry! Desert

4

Chip's Tips on Canada

4

Chip's Tips on Egypt

4

Maddy's Mississippi Diary

4

Chip's Tips on Algeria

4

Chip's Tips on Greece

4

Steppe

4

Maddy's Virginia Diary

4

Chip's Tips on Russia

4

Maddy's Vermont Diary

4

Maddy's Illinois Diary

4

Maddy's Texas Diary

4

Chip's Tips on Yemen

4

Chip's Tips on Botswana

4

Maddy's Arizona Diary

4

Chip's Tips on Malta

4

Chip's Tips on Senegal

4

Maddy's Maine Diary

4

Maddy's Iowa Diary

2

Snow and Ice! Polar