Boulder, Colorado, United States
Milano, Lombardia, Italy
Copenhagen, Capital Region of Denmark, Denmark
Kristiansand, Vest-Agder, Norway
Washington, DC, United States
Vitry-sur-Seine, Ile-de-France, France
Rotterdam, Zuid-Holland, Netherlands
Amsterdam, Noord-Holland, Netherlands
Sydney, New South Wales, Australia
Izmir, Izmir, Turkey
Paris, Ile-de-France, France
Ulsan, Ulsan, South Korea