Copenhagen, Capital Region of Denmark, Denmark
Moscow, Moscow, Russian Federation
Silver Spring, MD, USA
Hanover, Lower Saxony, Germany
Cologne, Nordrhein-Westfalen, Germany
Washington, DC, USA
Cologne, North Rhine-Westphalia, Germany
Rovaniemi, Lappi, Finland
Nouakchott, Nouakchott, Mauritania
Bonn, North Rhine-Westphalia, Germany
