Subject Region
United States
478
Australia
120
California
98
North America
91
India
83
Mexico
71
Tropics
64
Europe
63
Africa
61
Great Britain
61
Earth (Planet)
58
Canada
51
China
51
Arctic regions
48
Florida
45
West (U.S.)
43
Mediterranean Region
42
Alaska
41
Developing countries
41
Amazon River Region
40
Brazil
38
Latin America
35
Japan
34
New York (State)
33
Southern States
31
England
29
Spain
29
British Columbia
28
Antarctica
26
Espana
26
Mexico, Gulf of
26
Tanzania
26
Colombia
24
Polar regions
24
America
23
Peru
23
South Africa
23
Texas
23
France
22
Everglades
21
Indonesia
21
New York
20
Southeast Asia
20
Arizona
19
Wisconsin
19
Hawaii
18
Russia (Federation)
18
Washington (State)
18
Asia
17
Louisiana
17
more ...