This week, we share one of our new favorite blogs, "Rides a Bike," which features historic shots of celebrities cycling. In honor of Audrey Hepburn's 85th birthday, they posted the photo below. Click the link to see more classy snaps.
Do you know your state tree? How about all 50? Guam's? Expand your knowledge at the link below. Finally, check out 80 eco-friendly bike designs. Some are among the craziest we've seen.