A bicycle, also called as a bike, pushbike or cycle, is a pedal-driven, human powered single-track vehicle with two wheels attached to frame, one behind the other. A person who rides a bicycle is named as bicyclist or a cyclist. Bicycles were introduced in the nineteenth century and now the number can reach approximately one billion worldwide, twice as many as cars. They are the main means of transportation in many countries. Bicycles also function as a popular form of recreation, and have been adapted for such application as adult fitness, military and police jobs ,children’s toys, courier services as well as bicycle racing. The invention of the bicycle has led to a huge impact on society, both related to culture and advancing modern industrial technologies. Some parts that finally played a major role in the development of the automobile were initially invented for the bicycle, including chain-driven sprockets, spoke-tensioned wheels and ball bearings. In this site, you will find some stunning pictures of bicycle. As you will see, the details of the bicycles designs demonstrate that the makers are the skillful experts. They not only create a bicycle for transportation but for expressions of art. Take a close look at this site containing some images of fashionable bicycles.