2

Country Flags of Asia

4

Erbil Citadel, Iraq

4

Patsy and Paul at Angkor Wat in Cambodia

3

Drainage Basins of the World

4

Chip's Tips on India

4

Kremlin, Russia

3

Isthmuses of the World

3

Diwali

3

Archipelagos of the World

3

Eid al-Fitr

3

Chinese New Year

4

Great Wall of China, China

4

Petronas Twin Towers, Malaysia

3

Canyons of the World

3

Islands of the World

3

Straits of the World

3

Harbors of the World

3

All About History

4

Chip's Tips on Oman

4

Mount Fuji, Japan

4

Chip's Tips on Egypt

3

Juan Ponce de León

3

Houses from around the World

3

Genghis Khan

4

Burj Khalifa, United Arab Emirates

3

Christopher Columbus

4

Forbidden City, China

3

Passover

3

Sinkholes of the World

3

Mother Teresa