Region
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Madagascar
13
Rocky Mountains
13
Sequoia National Park (Calif.)
13
Africa, East
12
Appalachian Region
12
Chesapeake Bay (Md. and Va.)
12
Ethiopia
12
Great Barrier Reef (Qld.)
12
Islamic countries
12
Namibia
12
North Atlantic Ocean
12
North Pacific Ocean
12
Pacific Ocean
12
Poland
12
Québec (Province)
12
Tongass National Forest (Alaska)
12
Vermont
12
Atlantic Ocean
11
Everglades
11
Florida Keys National Marine Sanctuary
11
Guam
11
Hudson River (N.Y. and N.J.)
11
Kings Canyon National Park (Calif.)
11
New Hampshire
11
Western countries
11
American Samoa
10
Boston (Mass.)
10
Confederate States of America
10
Connecticut
10
Europe, Western
10
Himalaya Mountains Region
10
Hong Kong
10
Iron County
10
Mississippi River Valley
10
Pakistan
10
Papua New Guinea
10
Rhode Island
10
Sweden
10
Uganda
10
Venice
10
Washington County
10
Canada, Western
9
Delta Region
9
Hungary
9
Long Island Sound (N.Y. and Conn.)
9
Manitoba
9
Mexican-American Border Region
9
Nicaragua
9
Pacific Coast (North America)
9
Philadelphia
9
more ...