L'Aquila, Abruzzo, Italy
Aachen, North Rhine-Westphalia, Germany
Treviso, Veneto, Italy
Noli, Liguria, Italy
Bologna, Emilia-Romagna, Italy
Copenhagen, Capital Region of Denmark, Denmark
Echternach, Grevenmacher, Luxembourg
Salzburg, Salzburg, Austria
Walchwil, Switzerland
Budapest, Budapest, Hungary
Berlin, Berlin, Germany
Dalkeith, Edinburgh, United Kingdom of Great Britain and Northern Ireland