Region
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North Pole
1
Northern Ireland
1
Northwest, Old
2
Northwest, Pacific
1
Norway
2
Oceania
5
Oklahoma
1
Olympus, Mount (Greece)
1
Oregon National Historic Trail
2
Orient
1
Orinoco River (Venezuela and Colombia)
1
Oslo (Norway)
1
Outer space
1
Pacific Ocean
4
Paris (France)
2
Pennsylvania
1
Peru
2
Philadelphia
1
Pirates
1
Poland
1
Polynesia
1
Pompeii (Extinct city)
1
Princeton (N.J.)
1
Québec (Province)
1
Russia (Federation)
1
Saltee Islands (Ireland)
1
San Juan (P.R.)
1
Santo Domingo
1
Santo Domingo (Dominican Republic)
1
Scotland
1
Seattle
1
Seattle (Wash.)
1
Siberia
1
Siberia (Russia)
1
Solar system
1
South Africa
1
South America
3
South Carolina
1
South Dakota
1
Southern States
3
Southwest, New
1
Southwestern States
1
Spain
1
Sudan
1
Switzerland
1
Sydney (N.S.W.)
1
Texas
1
Tibet Autonomous Region
1
Tibet Autonomous Region (China)
1
Ungava Bay
1
more ...