DC has great traffic circles. It's the Parisian influence that our forefathers seemed to dig. I used to think the best part about traffic circles, and being on a bike, was that instead of having to go 3/4 of the way around to your street, you could bomb through them clock-wise (against traffic) and put a couple blocks on traffic as they made their way around the circle. Now I ride with traffic. Flying in and out of the fray when you know the cars can't go but so fast, and--for once--are more concentrated on trying to figure out what lane they are supposed to be in than effing with you is liberating. Lean to the left and blast full speed ahead...lights and lanes be damned. Watching the sprinters in the Olympics come off the turn in the 200m race reminded me of riding through Logan Circle on my way to work each morning.