Subject Region
United States
63
Tropics
25
Great Britain
23
England
21
France
16
West (U.S.)
16
Australia
15
Mexico
14
Europe
13
British Columbia
12
North America
11
Northwest, Pacific
11
Brazil
10
Canada
10
Pennsylvania
10
India
9
Scotland
9
Southern States
7
Amazon River Region
6
Bouches-du-Rhône
6
Germany
6
New England
6
Northeastern States
6
Russia
6
Spain
6
Great Lakes Region (North America)
5
Ireland
5
Scandinavia
5
Soviet Union
5
Virginia
5
Alabama
4
Asia
4
China
4
Dorset (England)
4
Indonesia
4
Japan
4
Latin America
4
Massachusetts
4
Michigan
4
Minnesota
4
Oregon
4
Washington (State)
4
Arizona
3
Espana
3
Europe, Eastern
3
Finland
3
Germany (East)
3
Madagascar
3
Maine
3
Maryland
3
more ...