I was going to say you're finally in a big enough city to HAVE light trails, but (duh!) there's always London in a pinch! Of course, I know Chicago better than London, so it's fun to see pictures taken here! Gorgeous!
Fabulous, this is something I would love to do, but have to go to the city to give it a try. You only get a bloke on a bike where I live in the evening. Not much traffic around, ha ha.