Daredevil Alain Robert – who has taken on more than 70 skyscrapers – climbs 2,717ft Burj Khalifa in Dubai..

Before he began to scale the 2,717ft (828m) Burj Khalifa in the United Arab Emirates, Alain Robert said he expected it to take about six or seven hours. As night fell, a row of powerful spotlights shone on the side of the tower, so spectators could see Robert in action. After just over six hours Robert was waving down from more than half a mile in the air having even navigated the tapered spire that extends beyond the top floors of the structure. „Spiderman“ had done it again.