Germany, Pennsylvania, US
2008
Campeche, Campeche, MX
2008
Kansas City, Missouri, US
2008
Windsor, Ontario, CA
2008
Stara Zagora, Stara Zagora, BG
2009
Târgu Secuiesc, Covasna County, RO
2009
U.S. Air Force Academy, Colorado, US
2009
Brantford, Ontario, CA
2009
Oud-Beijerland, Zuid-Holland, NL
2009
U.S. Air Force Academy, Colorado, US
2009
Naples, Campania, IT
2008
Arkadelphia, Arkansas, US
2010
Redcliffe, Queensland, AU
2010
Plymouth, England, GB
2011
Umeå, Västerbotten County, SE
2011
Southampton, England, GB
2010
Sofia, Sofia-city, BG
2011
Nederland, Colorado, US
2010
Edgewood, Washington, US
2011
Bristol, England, GB
2012
