2
Jazz Gets Some Zzs
4
Great Wall of China, China
3
Coral Reefs of the World
4
Early Native Americans
4
Stonehenge, England
4
Sphinx, Egypt
4
London Eye, London
3
Caves of the World
3
Stars
4
Golden Temple, India
4
Grand Canyon
3
The Mount Kenya Trio
3
Drainage Basins of the World
4
Okavango Delta, Botswana
4
Ngorongoro Crater, Tanzania
4
Father's Road Trip
3
Capes and Peninsulas of the World
4
Burj Al Arab, United Arab Emirates
3
Isthmuses of the World
3
Saturn
3
Mercury
4
Windsor Castle, England
4
Victoria Falls, Zimbabwe/Zambia
3
Fjords of the World
3
Uranus
2
The Spider Web
4
Canterbury Cathedral, Canterbury, England
3
Coastal Plains of the World
3
The Frogs and The Ox
4
Mecca, Saudi Arabia