Region
United States
92
Great Britain
81
France
51
Germany
45
Italy
35
Poland
26
Switzerland
26
Canada
16
Austria
12
Belgium
12
India
10
Netherlands
9
Sweden
8
Japan
7
Spain
6
Norway
5
Vienna
4
Chicago
3
Czechoslovakia
3
Egypt
3
Illinois
3
Puerto Rico
3
Arizona
2
Australia
2
Bermuda Islands
2
Birmingham (England)
2
Blanc, Mont (France and Italy)
2
China
2
Czech Republic
2
Denmark
2
Erfurt (Germany)
2
Garda, Lake (Italy)
2
Grand Canyon
2
Guatemala
2
Java (Indonesia)
2
Lucerne (Switzerland)
2
Masovia (Poland)
2
Mexico
2
New York (State)
2
Peru
2
Prague
2
Pyrenees
2
Royal Botanic Gardens, Kew
2
Salzburg (Austria)
2
Warsaw
2
Warsaw (Poland)
2
Zurich (Switzerland)
2
Africa
1
Africa, North
1
Alcala de Los Gazules (Cadiz, Spain)
1
more ...