4

Chip's Tips on Mexico

4

Chip's Tips on Rwanda

3

May Day

3

Light

4

Chip's Tips on Madagascar

4

Chip's Tips on The Dominican Republic

4

Carthage, Tunisia

3

Purim

4

Ngorongoro Crater, Tanzania

4

Chip's Tips on Algeria

4

Chip's Tips on Kenya

3

Passover

4

Chip's Tips on Botswana

4

Chip's Tips on South Africa

4

Chip's Tips on Brazil

4

Chip's Tips on Equatorial Guinea

3

Heat and Temperature

4

Hoover Dam

4

Chip's Tips on China

3

Eid al-Fitr

4

The Golden Gate Bridge

3

Western New Year's Day

3

Energy

4

Chip's Tips on Mauritius

4

Washington Monument

4

Chip's Tips on Tunisia

4

Chip's Tips on Nigeria

4

Chip's Tips on Senegal

4

Chip's Tips on Papua New Guinea

4

The White House