Mill Ends Park in Portland, Oregon is designated by the Guinness Book of World Records as the Smallest Park in the World. Humanwire correspondent Justin Wolfson interviews Mark Ross of The Portland Parks and Recreation Department on the history of Mill Ends. Special thanks also to Jeff Ballard. Humanwire is sponsored by AT&T. Rocketboom's Humanwire curates and assigns stories through a network of over 150 vetted correspondents from around the world. For more information on Humanwire, or to learn how to get involved, please contact us!