Region
United States
56
États-Unis
44
Washington (DC)
6
USA
5
New York
4
New York (State)
4
Boston (Mass.)
3
Cambridge (Mass.)
3
Great Britain
3
Japon
3
New York (NY)
3
San Francisco (Calif.)
3
Anaheim (Calif.)
2
Chicago (Ill.)
2
Cincinnati (Ohio)
2
Developing countries
2
Etats-Unis d'Amérique
2
Europe
2
Grande-Bretagne
2
Houston (Tex.)
2
Israel
2
Israël
2
Las Vegas (Nev.)
2
Laxenburg
2
London
2
Los Angeles (Calif.)
2
Montréal
2
New York City
2
Philadelphia (Pa.)
2
Pittsburgh (Pa.)
2
San Diego (Calif.)
2
Africa
1
Afrique
1
Alberta
1
Albuquerque (NM)
1
Amérique du Nord
1
Appalachian Region
1
Arctic Regions
1
Arctic regions
1
Atlanta (Ga.)
1
Atlantic Ocean
1
Bayreuth
1
Bethlehem (Pa.)
1
Bethlehem Pa
1
Brüssel
1
Canada
1
Cardiff
1
Cesme
1
Charleston (SC)
1
Charlottesville (Va.)
1
more ...