An Imagination Playground.

New York has a number of "Imagination Playgrounds", playgrounds inspired by Simon Nicholson's "loose parts" idea, the idea that the more ways a child can change something, the more the child learns. The New York Imagination Playgrounds are described as amazing, inspiring complex and cooperative play. Here's a blog post urging Dublin to do the same thing:

 http://traathacliath.tumblr.com/

which gives links.

Bristol is a city whose proudest boasts are about creativity, about imagination and exploration, about a type of independance that doesn't stop us working together. This is a proposal about providing opportunities for children to learn these skills, these values.