Geographic Subject
Germany
502
Switzerland
234
Göttingen
64
Italy
40
Alps
34
Marburg
31
Leipzig
29
Sweden
27
Finland
25
Bavaria
23
Berlin
18
Jena
18
Prussia
17
Giessen
16
Jura Mountains (France and Switzerland)
16
Tübingen
15
Zurich
15
Austria
14
Spain
14
Earth
13
Breslau
12
Europe
12
Germany (West)
12
Ticino
12
Halle
11
Iran
11
Zürich
11
Bern
10
Bern (Canton)
10
Heidelberg
10
Africa
9
Greece
9
Greenland
9
Munich
9
Bonn
8
Hesse
8
Turkey
8
Graubünden
7
Netherlands
7
Peru
7
Alps, Swiss
6
Baltic Sea
6
Dissertations
6
France
6
Jura Mountains
6
Kiel
6
Münster
6
North Sea
6
Saint Gall (Canton)
6
Silesia
6
more ...