The 13,000 square-mile National Radio Quiet Zone is home to the Green Bank Telescope. The 2-acre, 16-million pound dish is the largest, fully steerable radio telescope in the world. And, as this gorgeous video by Motherboard highlights, it might be in danger.
For lack of a better word, the Robert C. Byrd Green Bank Telescope (GBT) is ginorgantic. (That's the evolved form of ginormous). At 17 million pounds, it is both the world's largest, most technologically-advanced single-dish radio telescope—and the single biggest land-based movable structure on the planet.