U.S. Air Force Academy, Colorado, US
2009
Manchester, England, GB
2007
Philadelphia, Pennsylvania, US
2008
Melbourne, Victoria, AU
2009
Haarlem, North Holland, NL
2009
Budapest, Budapest, HU
2009
La Cañada Flintridge, California, US
2009
Perth, Western Australia, AU
2007
Kansas City, Missouri, US
2008
Frankfurt, Hesse, DE
2009
Nouzerines, Limousin, FR
2010
Nederland, Colorado, US
2009
Freeport, Florida, US
2010
Baumholder, Rhineland-Palatinate, DE
2010
San Diego, California, US
2010
Sheboygan, Wisconsin, US
2009
U.S. Air Force Academy, Colorado, US
2009
San Leandro, California, US
2010
U.S. Air Force Academy, Colorado, US
2010
St Louis, Missouri, US
2010
Edgewater, Florida, US
2009
U.S. Air Force Academy, Colorado, US
2009
Evrytania, Thessalia Sterea Ellada, GR
2010
U.S. Air Force Academy, Colorado, US
2010
U.S. Air Force Academy, Colorado, US
2010
Edenvale, Gauteng, ZA
2010
New Orleans, Louisiana, US
2010
U.S. Air Force Academy, Colorado, US
2010
Whigham, Georgia, US
2010
Pretoria, Gauteng, ZA
2009
Atlanta, Georgia, US
2009
Vancouver, British Columbia, CA
2010
U.S. Air Force Academy, Colorado, US
2010
Colchester, England, GB
2008
Escondido, California, US
2009
Poway, California, US
2009
Chicago, Illinois, US
2010
Valencia, Valencian Community, ES
2010
Amsterdam, North Holland, NL
2009
Indianapolis, Indiana, US
2010
Mexico City, Federal District, MX
2011
Atlantic City, New Jersey, US
2010
Puerto Rico, Misiones Province, AR
2010
Sour Lake, Texas, US
2009
Lexington, North Carolina, US
2011
South Jordan, Utah, US
2011
Guadalajara, Jalisco, MX
2011
Fort McMurray, Alberta, CA
2011
Pueblo, Colorado, US
2011
Fort Wayne, Indiana, US
2011
Fredericksburg, Virginia, US
2011
Vilseck, Bavaria, DE
2011
Beatrice, Nebraska, US
2011
Selangor, Selangor, MY
2011
Whitehaven, England, GB
2011
Limerick, Limerick, IE
2011
Waikanae, Wellington, NZ
2011
Caldas da Rainha, Leiria, PT
2011
U.S. Air Force Academy, Colorado, US
2010
Brisbane, Queensland, AU
2008
North Bay, Ontario, CA
2011
Szigetszentmiklós, Pest County, HU
2010
Schleiden, North Rhine-Westphalia, DE
2011
Norrköping, Östergötland County, SE
2011
Calgary, Alberta, CA
2011
Sacramento, California, US
2011
Struer, Central Denmark Region, DK
2010
Montreal, Quebec, CA
2012
The Dalles, Oregon, US
2012
Norman, Oklahoma, US
2013
Pretoria, Gauteng, ZA
2012
Erie, Pennsylvania, US
2013
Denver, Colorado, US
2014
Albion Park, New South Wales, AU
2016
Nuneaton, England, GB
2016