Region
United States
601
États-Unis
327
New York (State)
126
New York (État)
35
Outer space
17
New York
13
California
12
Moon
10
Pennsylvania
10
Californie
9
Espace extra-atmosphérique
9
Pennsylvanie
9
Soviet Union
9
Alaska
8
Lune
8
Panama
8
Panama Canal (Panama)
8
Texas
8
USA
8
Canal de Panamá (Panamá)
7
Hudson River Estuary (N.Y. and N.J.)
7
Panama Canal
7
China
6
Colorado
6
Developing countries
6
Hudson River (N.Y. and N.J.)
6
Mexico
6
Mississippi River
6
New Mexico
6
URSS
6
Asia
5
Florida
5
Great Britain
5
North America
5
Washington (State)
5
Wisconsin
5
Arizona
4
Europe
4
Floride
4
Grande-Bretagne
4
Louisiana
4
Mexico, Gulf of
4
Michigan
4
Mississippi (Fleuve)
4
Netherlands
4
Ohio
4
Appalachian Region
3
Canada
3
England
3
Entwicklungsländer
3
more ...