Berkeley, California, United States
Biel/Bienne, Bern, Switzerland
Ludwigshafen am Rhein, Rheinland-Pfalz, Germany
Erftstadt, North Rhine-Westphalia, Germany
New Haven, CT, USA
London, London
Dun Laoghaire, Dublin, Ireland (Republic of)
Mandaluyong, National Capital Region, Philippines
Santa Cruz, California, United States
Riccione, Emilia-Romagna, Italy
San Francisco, CA, USA
