Region
Italy
107
England
81
Spain
69
United States
66
Germany
55
Great Britain
51
Europe
37
Japan
29
Netherlands
28
France
26
London (England)
21
Pennsylvania
20
London
16
Leipzig (Germany)
15
Switzerland
15
China
14
Philadelphia
14
Paris (France)
13
Austria
12
United Kingdom
12
Italie
11
Soviet Union
11
Berlin (Germany)
10
Denmark
10
Leiden (Netherlands)
10
Espagne
9
New York
9
New York (State)
9
Scotland
9
Australia
8
Belgium
8
Florence
8
Leiden
8
Vienna
8
Massachusetts
7
Tibet Autonomous Region
7
Frankfurt am Main (Germany)
6
Venice (Italy)
6
Amsterdam (Netherlands)
5
Bologna
5
Grande-Bretagne
5
Padua
5
Philadelphia (Pa.)
5
Rome
5
Cagliari
4
California
4
Edinburgh
4
Egypt
4
Greece
4
Marburg
4
more ...