Region
Africa
2
Alaska
2
Albania
1
Appalachian Region, Southern
1
Austin
1
Austin (Tex.)
1
Austria
2
Balkan Peninsula
1
Berlin
1
Berlin (Germany)
1
Bern (Switzerland)
1
Bielsko-Biała
1
Bielsko-Biała (Poland)
1
Bogotá
1
Bogotá (Colombia)
1
Bosnia and Herzegovina
1
Boston
1
Bulgaria
1
Canada
2
China
1
Colombia
2
Croatia
1
Cyprus
1
Czech Republic
1
Egypt
3
Ethiopia
1
Europe
2
Europe, Eastern
1
Fort Stockton (Tex.)
1
France
3
Georgia
14
Germany
6
Germany (West)
1
Great Britain
5
Greece
2
Hungary
1
India
1
Iran
4
Israel
6
Italy
2
Japan
1
Jefferson (Allegheny County)
1
Jefferson (Allegheny County, Pa.)
1
Jimmy Carter National Historic Site (Plains, Ga.)
1
Kenya
1
Korea
1
Korea (North)
1
Korea (South)
3
Kosovo
1
Latin America
1
more ...