Region
Pennsylvania
130
United States
80
Europe
41
India
36
Greenland
31
Mexico
31
Virginia
30
Africa
25
Spain
25
Australia
24
Earth (Planet)
24
New York (State)
24
Antarctica
23
China
23
Canada
22
California
21
New Mexico
21
West (U.S.)
21
Appalachian Mountains
20
Appalachian Region
20
Czechoslovakia
20
Nevada
20
Arizona
18
France
18
Italy
18
Great Basin
17
North America
17
Utah
17
Arctic regions
16
Bahamas
16
Caribbean Area
16
Texas
16
Wyoming
16
Asia
15
Pacific Ocean
15
Pennsylvanie
15
Appalachian Basin
14
Colorado
14
Russia (Federation)
14
West Virginia
14
États-Unis
14
Alaska
13
Maryland
13
Carpathian Mountains
12
Mars (Planet)
12
États-Unis
11
New Brunswick
11
Algeria
10
Idaho
10
Middle Atlantic States
10
more ...