#4 Copenhagen, Denmark: Great Bicycle City Photo Tour

Blue Bikes Lanes at Critical Intersections

This last one also fits on the kids on bikes page.

Image Credit 1: malouette via flickr under a Creative Commons license
Image Credit 2: malouette via flickr under a Creative Commons license
Image Credit 3: malouette via flickr under a Creative Commons license
Image Credit 4: complexify. via flickr under a Creative Commons license