'Spider-Man' climbs 38-story skyscraper without a rope in 30 minutes

A French climber scaled one of Barcelona's highest skyscrapers, the Torre Agbar, on Friday. Alain Robert climbed and descended 144 meters (472 feet) in just one hour. He scaled the narrow ledges of the 38-story skyscraper without a harness.  Read more...More about Mashable Video, Spain, Scaling, Skyscraper, and Dubai