View of National Library of Norway and city tram, Aker Brygge, Oslo, Norway, Scandinavia, Europe

Rickshaw in a village traversed by the causeway near Cienaga, department of Magdalena, Caribbean Region, Colombia, South America

Stockingfield Bridge, Forth and Clyde Canal, Glasgow, Scotland, United Kingdom, Europe

Bicycles available on rent in Nagao Beach to stop air pollution caused by fossil fuel vehicles, Nagao Beach, Diu, India, Asia

A street scene with a Hong Kong Tram in the background with pedestrians crossing a busy street, Hong Kong, China

Bicycle-sharing system in Zona Rosa area, Bogota, Colombia, South America

Man on bicycle riding on Mr. J.J. van der Veldebrug bridge, Amsterdam, The Netherlands, Europe

View of city tram and contemporary architecture in the Barcode area on a sunny day, Oslo, Norway, Scandinavia, Europe

Bikes by Thorbeckemonument, statue of Johan Rudolph Thorbecke, Amsterdam, The Netherlands, Europe

Cycle roadway marking at the crossroads in front of Dokk1, Library and Citizens' Services on Urban Waterfront of Aarhus, Jutland Peninsula, Denmark, Europe

Cycle lane, Hamburg, Germany, Europe

Cyclists and traffic on Beijing main street, Chang An Avenue, China