"Yes, you can grow a thriving farm on a rooftop in the middle of New York City. Case in point: Brooklyn Grange, which harvests more than 80,000 pounds of organic produce annually on three rooftop farms in the city. The newest is in Sunset Park, Brooklyn; it launched this summer and is open to the public on Sundays through October. You can visit the farm for free, check out the massive greenhouse with its hydroponically grown vegetables and microgreens, and buy seasonal produce like baby mustard greens, arugula, kale, eggplant, and root vegetables." - Vox Creative