Cities and cycling are two words that don't often sit comfortably together. But with the future of our planet at stake, there's been a big drive to make Europe's cities more bicycle-friendly, both for residents and visitors. Many cities now have bike-share schemes, usually free for the first half hour or so, that make it easy to hop between the sights quickly and easily -- additions to those listed below are Dublin, Brussels, Vienna, and Seville.
Photo Caption: A bike sits on a bridge overlooking the Amsterdam canals.
