Region
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Philadelphia (Pa.)
3
Phoenix (Ariz.)
3
Queens (New York, N.Y.)
3
Salinas River Valley
3
Solar system
3
South America
3
Spain
3
Sweden
3
Tennessee
3
Vietnam
3
Virginia
3
Wisconsin
3
Afghanistan
2
Africa, Sub-Saharan
2
Alaska
2
Arctic regions
2
Bronx (New York, N.Y.)
2
Brooklyn
2
Californie
2
Cape Cod (Mass.)
2
Caribbean Area
2
Chad
2
Colorado
2
Dublin
2
East Asia
2
Egypt
2
Eleanor Roosevelt National Historic Site (N.Y.)
2
England, Northern
2
Exeter (N.H.)
2
Florence
2
Florence (Italy)
2
Fort Fillmore
2
Friendship Hill National Historic Site (Pa.)
2
Grande-Bretagne
2
Harlem (New York, N.Y.)
2
Hyde Park (Dutchess County)
2
Iowa
2
Italy, Northern
2
Kabul (Afghanistan)
2
Kansas
2
Korea
2
Korea (South)
2
Latin America
2
Little Rock
2
Little Rock (Ark.)
2
Louisville
2
Louisville (Ky.)
2
Mesilla Valley (N.M.)
2
Miami (Fla.)
2
Moon
2
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