Chinese companies are rushing to deploy low-flying vehicles and drones for various uses as the country finds innovative ways to drive its economy. Flying taxis, once a sci-fi dream, are being tested in southern China, where pilotless, oval-shaped crafts hover like mini helicopters. In Shenzhen, which neighbors Hong Kong, food-delivery drones already are part of daily life. (AP video shot by: Olivia Zhang and Alice Fung)