Region
Africa
2
Alabama
2
Alaska
2
Angola
1
Antarctica
3
Arctic regions
3
Australia
3
Barth
1
Belgium
2
Bend
1
Berlin
1
Berlin (Germany)
2
Birmingham (Ala.)
1
Borneo
1
Bosnia and Herzegovina
1
Burma
1
California
4
Canada
10
Central America
1
Cheyenne
1
Chichi Island
1
Chichi Island (Japan)
1
China
4
Cincinnati
1
Colorado
1
Communist countries
1
Czech Republic
1
El Dorado (Kan.)
2
English Channel
1
Estados Unidos
1
Ethiopia
1
Europe
8
France
13
Germany
10
Ghana
1
Great Britain
36
Great Plains
1
Guam
1
Ho Chi Minh Trail
1
Houston (Tex.)
1
Hudson River (N.Y. and N.J.)
1
Idaho
1
Illinois
2
Indiana
2
Israel
6
Italy
4
Japan
1
Kenya
3
Kiribati
1
Korea
2
more ...