Region
United States
354
Arizona
9
Great Britain
7
Alaska
4
California
4
Canada
3
Europe
3
Germany
3
Grand Canyon National Park (Ariz.)
3
Japan
3
Russia
3
Arlington
2
Chicago
2
China
2
Cleveland
2
Edwards Air Force Base (Calif.)
2
European Union countries
2
Grand Canyon National Park
2
Hawaii
2
Hudson River (N.Y. and N.J.)
2
Illinois
2
Lake and Peninsula Borough
2
Lake and Peninsula Borough (Alaska)
2
Michigan
2
New York
2
New York (State)
2
North Carolina
2
Ohio
2
Outer space
2
South Carolina
2
Tennessee
2
Virginia
2
Alaska-Siberia Air Route (Alaska and Russia)
1
Arctic regions
1
Australia
1
Brazil
1
California, Northern
1
Cape Hatteras National Seashore
1
Cape Hatteras National Seashore (N.C.)
1
Casa Grande Ruins National Monument
1
Casa Grande Ruins National Monument (Ariz.)
1
Charleston
1
Colorado
1
Coronado National Memorial
1
Coronado National Memorial (Ariz.)
1
Denver
1
Florida
1
Foreign countries
1
Fort Bowie National Historic Site
1
Fort Bowie National Historic Site (Ariz.)
1
more ...