The landscape was filled with machines and scrap metal connected to the facility in various ways. Always present on the horizon were the colossal cooling towers, with their green obstruction lights. If you put your ear to the ground, you could hear the pulse of the Loop – the hum of the Gravitron, the central piece of mechanical magic that was the focus of the Loop's experiments. This facility was the largest of its kind in the world and it was said that its powers could bend space-time.