Farming doesn't just happen in the country — there's an urban agricultural revolution afoot that has food growing everywhere. We took a visit to Brick Street Farms in downtown St. Petersburg, FL, right off Central Avenue and within site of Tropicana Field. There, on a 1/3 acre asphalt lot, Brick Street is growing greens and microherbs. So how much could they grow in a tiny spot like that? Well, if they were doing the same thing outdoors, instead of climate controlled, computer operated rehabbed shipping containers, they'd need about 43 acres of land. It's an amazing story — and it's coming soon to a city near you (if it's not already there).