Region
Afghanistan
8
Africa
6
Africa South of the Sahara
2
Africa, Southern
2
Africa, Sub-Saharan
2
Africa, West
1
Alabama
1
Alaska
4
Arab countries
3
Arabian Peninsula
1
Arctic regions
6
Argentina
1
Arizona
4
Arkansas
1
Armory Square (Springfield, Mass.)
1
Asia
7
Asia, Central
2
Asia, Eastern
1
Atlantic Ocean
1
Aurora
1
Australasia
1
Australia
5
Austria
2
Balkan Peninsula
1
Berkshire
1
Besis Ḥel aṿir Ramon (Israel)
2
Besis Ḥel aṿir ʻOvdah (Israel)
2
Bikini Atoll
3
Bikini Atoll (Marshall Islands)
1
Black Hills (S.D. and Wyo.)
1
Black Mountains (Mohave County)
1
Brazil
3
Brooks Air Force Base (Tex.)
1
Burgundy
1
Burgundy (France)
1
Burma
1
Butte
1
California
3
Cam Ranh
1
Cam Ranh Region (Vietnam)
1
Canada
5
Caucasus
1
China
25
Colombia
2
Colorado
9
Columbia River
1
Communist countries
1
Cuba
1
Czech Republic
1
Czechoslovakia
1
more ...