An American fashion design student is paying a cool £21,000 a month (£5,250 a week) for their London apartment, it has been revealed, making it perhaps the most expensive student digs in the world. The 19-year-old snapped up the three-bedroom triplex in Fountain House on Park Lane in Mayfair, which boasts a glass central staircase, entertaining rooms, a walk-in wardrobe and a massive double shower. But this isn't the only luxury residence available in this development. Come and take a tour.