The United States has many great places to ride a bike. According to HGTV, here are the 10 Greatest Cycling Cities in America.
Visit the League of American Bicyclists to join the movement to create a bicycle-friendly America. Also, check out People for Bikes -- the movement to improve bicycling in America.
The Open Streets Project is interesting. It temporarily closes streets to automobile traffic, so that people may use them for walking, bicycling, dancing, playing, and socializing.