Region
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Alabama
4
Alaska
4
America
4
Arizona
4
Athens
4
Athens (Greece)
4
Bronx (New York, N.Y.)
4
Colorado
4
Congo (Democratic Republic)
4
Denmark
4
El Salvador
4
Ethiopia
4
Havana
4
Iceland
4
Lebanon
4
Manhattan (New York, N.Y.)
4
Manitoba
4
Minnesota
4
New South Wales
4
Niger
4
Northern Ireland
4
Pakistan
4
Pennsylvania
4
Poland
4
Puerto Rico
4
Rome
4
Russia
4
Samoa
4
Singapore
4
Southern States
4
Turkey
4
Washington (State)
4
Wyoming
4
Arctic regions
3
Burma
3
Canada, Northern
3
Crete (Greece)
3
Czechoslovakia
3
Everest, Mount (China and Nepal)
3
Grand Canyon (Ariz.)
3
Great Barrier Reef (Qld.)
3
Hong Kong
3
Indiana
3
Iowa
3
Jordan
3
Korea (North)
3
Kyrgyzstan
3
Latin America
3
Malawi
3
Mali
3
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