You can’t get much deeper into the concrete jungle in Paris than Le Redlight, buried in the basement of the Tour Montparnasse. There are two large dance-floors, the best laser show in town and a massive sound system pumping out the latest tech-house, sometimes played by famous international DJs flown in from the UK or Ibiza, or indeed by the electro-tastic owner- David Guetta. There can be long queues, but they tend to move quickly, and the bouncers impose their own brand of face control so try to look like you mean business. The crowd is young, rich and very up for it, and on some nights the club is mixed with a gay slant. They put on well-attended after-parties from 6am on Saturday and Sunday mornings.