Region
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Andes Region
3
Austria
3
Boston (Mass.)
3
Catalonia (Spain)
3
Iberian Peninsula
3
Illinois
3
Islamic countries
3
Mexican-American Border Region
3
Michigan
3
Montana
3
Netherlands
3
New England
3
Poland
3
Rio Grande Valley (Colo.-Mexico and Tex.)
3
Russia
3
Soviet Union
3
Wyoming
3
Yorkshire (England)
3
Africa, North
2
Altamira Cave (Spain)
2
Amazon River Region
2
Ann Arbor
2
Arctic regions
2
Asia
2
Australia
2
Berlin (Germany)
2
Bogotá
2
Brussels (Belgium)
2
Cauca (Colombia : Dept.)
2
Cauca (Dept.)
2
Chicago (Ill.)
2
Crete (Greece)
2
Crystal City
2
Crystal City (Tex.)
2
Denmark
2
Developing countries
2
Devon
2
Europe, Western
2
Florence (Italy)
2
Greece
2
Harlem (New York, N.Y.)
2
Houston
2
Iraq
2
Long Island (N.Y.)
2
Los Angeles (Calif.)
2
Maine
2
Mars (Planet)
2
Middle East
2
Missouri
2
Mogadishu (Somalia)
2
more ...