London's iconic Battersea Power Station, once dismal and menacing enough to grace Pink Floyd's Animals, is one step closer to an ambitious rebirth as massive, eco-friendly mixed-use development by Rafael Viñoly. The $8.2 billion planwill include 3,700 homes, 1.6 million square feet of office space, and 500,000 square feet of retail, ringing the power plant in undulating, terraced waves. The power station itself will get a stylish green roof and a shopping arcade inside; a new, carbon-free power plant will be buried below it, but it's unclear exactly what, or how.