Just because a space has been abandoned or is underutilized doesn't mean it is no longer useful. Entrepreneurs, artists, city officials, activists and neighbors, with the right amount of ambition and innovation, can take vacant or moribund spaces and turn them into opportunities. By transforming what we already have into sustainable properties, we revitalize neighborhoods and stimulate local economies. Twin Cities developers and entrepreneurs are rebirthing properties in south Minneapolis, along the Central Corridor in Saint Paul, and elsewhere in the metro--often creating stylish and edgy new businesses and living spaces in the process.