Region
European Union countries
5
Great Britain
5
United States
4
Europe
3
Australia
2
Northeast Passage
2
Africa
1
Alaska
1
America
1
Antarctica
1
Arctic regions
1
Asia
1
Bermuda Islands
1
China
1
Denmark
1
Germany
1
Jamestown (Va.)
1
Manchester Ship Canal (England)
1
Mediterranean Region
1
Mercury (Planet)
1
Middle East
1
Norway
1
Patagonia (Argentina and Chile)
1
Prince William Sound
1
Rhine River
1
Rome
1
South Coast (N.S.W.)
1
Spain
1
Venus (Planet)
1
Virginia
1