Berlin REWE supermarket has rooftop garden above the store

At the REWE supermarket in Berlin's Lankwitz district, lettuce is grown in a rooftop garden directly above the shop floor. The lettuce is harvested, hand-packed and brought downstairs before most customers arrive. The store was specially built with the farm in mind, featuring skylights through which customers can look up. The greenhouse operates year-round using hydroponic technology, with minimal soil...