Over two years ago I made a quick photo journal of my walk through a closed and disused piece of railway line going through the center of Helsinki which was due to be turned into a new cycle and pedestrian route. Well it will be opened this year (delayed or held back for WDC2012!) during the summer. It will be called Baana.
Along its borders there are great oportunities for additional insertions, bars and cafes, small shops, markets etc, if someone gives it a sympathetic eye in the city planning department.