[CITYSCAPES] Drone pilot explores Korea's hardest-to-reach places
A drone comes out of rural Koreas clear blue sky and descends into a lush green valley. Its motor makes an angry loud whirring sound, like a lawnmower crossed with a jet engine, but no ones around to hear it. It circles the area and then approaches a building that appears derelict, with all the doors on the ground floor locked tight. But that hardly presents an obstacle for this mechanical visitor; it finds an open window and slips right inside.
Source: koreatimes.co.kr