Been training for Ride the Rockies, in the country and in town. Slightly different experiences. My last 25 mile loop in the country, I saw a red-tailed hawk, a deer and a real bob cat!  I have never seen a bob cat in my entire life. Almost fell off my bike. The City on the other hand is spin class at Flywheel, in a darkened room with 60 riders (mostly young women and a few men) with a crazed instructor, loud music and serious Intervals. Quite the little contrast. Both work.