4

Yellowstone National Park

4

Chip's Tips on Niger

3

Cinco de Mayo

4

Niagara Falls

4

Great Wall of China, China

4

Timbuktu, Mali

4

Chip's Tips on Papua New Guinea

3

Hanukkah

4

Chip's Tips on Oman

3

Motion

4

Chip's Tips on Zambia

4

Chip's Tips on India

4

Chip's Tips on Namibia

4

Chip's Tips on Switzerland

4

Nile River, Egypt

4

Grand Canyon

4

Grandpa's Guide Dog

4

Chip's Tips on Malta

4

The Mississippi River

4

Table Mountain, South Africa

4

Chip's Tips on Brazil

3

Energy

4

Okavango Delta, Botswana

3

Gravity

3

Work

4

The Giant's Causeway, Ireland

4

Chip's Tips on Jamaica

4

Chip's Tips on United States

4

The Dome of Rock, Jerusalem

4

Windsor Castle, England