Taking urban garden to the next level, Seattle, Washington has officially broken ground on a dedicated seven acre area of city land set to be converted into an "edible forest" that will produce free food for the city's residents and visitors, human or otherwise.

The urban farm movement has been quickly gaining ground from the increasing presence of community gardens and local farmers markets cropping up all across the nation to restaurants growing their own herbs and hotels getting into the beekeeping business. But it's about to take a few giant leaps—or rather, yards—as Germany is planning to become home to the world's largest urban garden: a rooftop garden that will be as large as a regulation size soccer field.