Geographic Subject
Germany
540
Sweden
291
Switzerland
282
France
224
Netherlands
110
Finland
87
Spain
81
Göttingen
67
Italy
63
Alps
49
Europe
41
Denmark
34
Marburg
34
Indonesia
32
Greenland
31
Earth
30
Leipzig
30
Scandinavia
28
Berlin
27
Algeria
25
Bavaria
23
Jura Mountains (France and Switzerland)
20
Iran
19
Jena
19
Prussia
19
Uppsala
19
Zurich
19
Estonia
18
Norway
18
Paris
18
Africa
17
Baltic Sea
17
Pyrenees
17
Turkey
17
China
16
Giessen
16
Ticino
16
Austria
15
Madagascar
15
North Sea
15
Tübingen
15
Arctic regions
14
Germany (West)
14
Greece
14
Tropics
14
Bern (Canton)
13
Breslau
13
Halle
13
Lapland
13
Brazil
12
more ...