Spiderman' scales Dubai's Burj Khalifa tower

A controversial freeclimber has completed his record-breaking attempt to climb the tallest building in the world.French daredevil Alain Robert climbed into the record books last night (March 28th) after reaching the top of the Burj Khalifa tower.Mr Robert, who has earned the nickname Spiderman, took six hours to ascend the 828-metre high Dubai skyscraper, which is the tallest building in the