Region
Africa
1
Alaska
1
Aleutian Islands
1
Arab countries
1
Arctic regions
2
Arecibo (P.R.)
1
Asia
2
Atlantic Ocean Region
1
Australia
7
Australian Capital Territory
1
Austria
16
Baghdad (Iraq)
1
Belgium
1
Berlin
1
Berlin (Germany)
2
Bologna
1
California
1
Cambridge (Cambridgeshire)
1
Canada
7
Carinthia (Slovenia)
2
Carnic Alps (Italy and Austria)
2
China
7
Cremona
1
Denmark
8
Earth (Planet)
5
East Asia
2
East Lansing
1
Ecuador
1
England
10
Europe
5
Former Soviet republics
1
France
26
Germany
54
Germany (West)
3
Ghana
1
Gowanus Canal (New York, N.Y.)
1
Great Britain
108
Greece
2
Hampton (Va.)
1
Hanford
3
Hanford (Wash.)
2
Herculaneum (Extinct city)
1
Hiroshima-shi (Japan)
1
Hungary
1
India
4
Iowa
2
Iran
1
Iraq
1
Islamic countries
2
Israel
1
more ...