Region
Albemarle County
1
Alberta
1
America
1
Arctic regions
1
Australia
1
Austria
4
Berlin
2
Blackwater Draw Formation (Tex. and N.M.)
1
Bobcat Draw Badlands Wilderness
1
Bobcat Draw Badlands Wilderness (Wyo.)
1
Bogotá
1
Bohemia
1
Brazil
2
Budapest
2
Calgary
1
California
4
Canada
3
Castillo de San Marcos (Saint Augustine, Fla.)
1
Central Park (New York, N.Y.)
1
Charlottesville
1
Charlottesville (Va.)
1
Cheyenne
2
Cheyenne River Indian Reservation
1
Chicago
3
Chicago (Ill.)
1
China
4
College Station
1
College Station (Tex.)
1
Colombia
1
Connecticut
1
Czech Republic
1
Czechoslovakia
1
Detroit
1
Developing countries
2
Early works to 1800
1
Earth (Planet)
1
Egypt
3
England
22
Europe
9
Europe, Central
1
European Economic Community countries
1
Flanders
2
Florence
4
Florence (Italy)
2
Florida
1
France
11
Germany
11
Great Britain
13
Great Plains
1
Greece
2
more ...