I did a Contiki trip earlier in the year and one of the funnest parts of the whole thing was doing a bike tour in Edam. Single-speed, back-pedal brakes, trying (and failing) to learn a little dutch from the guide. Pretty amazing to see the masses of old-school bikes all around Amsterdam to. As far as I could tell, the traffic pecking order there goes bike, tram, car, pedestrian. Would be nice if a few more places were like that!