Region
United States
315
Outer space
97
Uranus (Planet)
29
Washington (D.C.)
20
Mars (Planet)
12
Moon
12
Earth (Planet)
10
Ohio
10
Cleveland
8
Jupiter (Planet)
8
Sun
8
Greenbelt
6
Maryland
6
Saturn (Planet)
6
Venus (Planet)
6
Solar system
4
Florida
3
Neptune (Planet)
3
Pennsylvania
3
Tropics
3
Antarctica
2
California
2
France
2
Japan
2
New Jersey
2
New York (State)
2
North America
2
Philadelphia
2
West (U.S.)
2
Alaska
1
Anselmo Mineyard (Butte, Mont.)
1
Arctic Ocean
1
Arizona
1
Atlantic Ocean
1
Bhutan
1
Brook Park
1
Butte
1
Canada
1
Central America
1
Chicago
1
Colorado
1
Congo (Democratic Republic)
1
Crystal River Valley
1
England
1
Gateway National Recreation Area (N.J. and N.Y.)
1
Germany
1
Gulf Coast (Tex.)
1
Hampton
1
Harry S. Truman National Historic Site (Mo.)
1
Illinois
1
more ...