Region
Africa
4
Africa, East
1
Alaska
1
Antarctica
1
Asia
2
Australia
3
Brazil
1
Canada
1
Earth (Planet)
1
Europe
4
Great Lakes (North America)
1
Great Lakes Region (North America)
1
Hawaii
1
India
1
Mekong River
1
Mekong River Valley
1
Middle East
2
Middle West
1
Minnesota
1
Mississippi River
1
New York (N.Y.)
1
North America
2
Northeastern States
1
South America
1
Southern States (U.S.)
1
Southwest (U.S.)
1
Tennessee
3
United States
14
Vietnam
1
West (U.S.)
1