There are many great parks and here are some examples:
• TEDxMiddlebury presentation by Adrian Benepe speaking about reanimating public space through sustainable design. He is a senior vice president and director of city park development for The Trust for Public Land, Adrian Benepe is one of the nation’s experts on the nexus of the public, private, and nonprofit sectors in public-space development and management. [16 min video] http://youtu.be/nkDgxsyZsrY
Short excerpt about how parks are viewed as an economic benifit.
• Great Urban Parks of the World. http://www.youtube.com/watch?v=dQ6Yu68KOrM