Cleveland's BioCellar, a new type of urban farming project, started as a vacant house. But Neighborhood Solutions, a local nonprofit, had a plan for that house, so when it was torn down, the basement was left intact. Now, there's a greenhouse being built on top, and plans for crops to be grown in the basement. FastCoExist explains:
Why a cellar? At depths below four feet, the ground stays at a constant temperature, so even in the middle of a harsh Cleveland winter, the room won't get colder than 50 degrees. With light flooding in from the glass roof above, food can grow year round.
Also, it's run on solar.