4

Chip's Tips on South Africa

2

Country Flags of Africa

4

Table Mountain, South Africa

3

Glaciers of the World

3

The Winklers' Holiday on Zoo Lovers Day

3

Christopher Columbus

4

Okavango Delta, Botswana

4

Chip's Tips on Yemen

2

Continents

4

Chip's Tips on Nigeria

4

Carthage, Tunisia

3

Coral Reefs of the World

3

Gulfs of the World

4

Chip's Tips on Ghana

3

The Mount Kenya Trio

3

Mother Teresa

4

Chip's Tips on United States

4

Chip's Tips on Oman

3

Amerigo Vespucci

3

Straits of the World

4

Lake Malawi, Malawi

3

Isthmuses of the World

4

The Pygmy People

3

Drainage Basins of the World

4

Pyramids of Giza, Egypt

3

Valleys of the World

4

Ngorongoro Crater, Tanzania

4

Chip's Tips on Botswana

3

The Mount Kenya Trio

3

Meteorites, Meteoroids, and Meteors