I've never seen as many bicycles in one place as I did in Copenhagen. The city is very bike-conscious and is constantly striving to improve conditions for cyclists. There are designated bike lanes and currently a project is to make these lanes wider. A current program is testing the right for cyclists to turn right on red. Many, many people ride their bikes to work. The desk clerk at our hotel told me it takes her ten minutes whereas the bus would take half an hour and cost money.
Some adults and most children wear helmets.
I was fascinated by not just the quantity but the variety of bicycles that I saw in Copenhagen, and this post is just photos of the cycling sights I saw.