4

Colosseum, Italy

4

How they work? Ships

3

Napoleon Bonaparte

4

Things to See in New York City

4

U.S.S. Arizona Memorial at Pearl Harbor

4

Chip's Tips on Switzerland

3

Caves of the World

3

Marco Polo

3

Easter

2

Country Flags of Europe

3

Florence Nightingale

4

Chip's Tips on Malta

4

Chip's Tips on Greece

3

Straits of the World

3

Leonardo da Vinci

3

Cuisines of the World

3

Christopher Columbus

4

Sheikh Zayed Mosque, UAE