City Greenway and Other Improvements

I just posted at the Madville Times about Daniel Long's proposal to turn a little portion of city land out back of his house on North Josephine into a garden space. I'd like to see little gardens like that become part of a citywide greenway, a network of trails that would run along all the creeks from one corner of town to the other. Beautiful, right?

What do you think? Where could we put more recreation trails in Madison? What other such improvements would you like to see?