Yellowstone National Park
|
|
2.9 |
|
|
Grand Canyon National Park
|
|
2.9 |
|
|
The Science Behind Track and Field
|
|
2.9 |
|
|
The Science Behind Gymnastics
|
|
2.9 |
|
|
U.S. National Parks (6 titles)
|
|
|
|
|
Everglades National Park
|
|
2.6 |
|
|
The Science Behind Tennis
|
|
2.7 |
|
|
The Science Behind Water Sports
|
|
2.9 |
|
|
Yosemite National Park
|
|
2.7 |
|
|
Great Smoky Mountains National Park
|
|
2.9 |
|
|
Acadia National Park
|
|
2.8 |
|
|
The Science Behind Volleyball
|
|
2.6 |
|
|
Ireland
|
|
2.9 |
|
|
El Salvador
|
|
2.7 |
|
|
France
|
|
2.9 |
|
|
Kenya
|
|
2.7 |
|
|
England
|
|
2.9 |
|
|
Dominican Republic
|
|
2.9 |
|
|
Australia
|
|
2.8 |
|
|
Germany
|
|
2.9 |
|
|
Ecuador
|
|
2.9 |
|
|
Sweden
|
|
2.9 |
|
|
Guatemala
|
|
2.7 |
|
|
Philippines
|
|
2.8 |
|
|
