A skyscraper climber nicknamed "Spiderman" has been arrested after scaling a 57-storey building in Australia with his bare hands.Alain Robert, known for climbing some of the world's tallest buildings without ropes or equipment, was held at the top of the Lumiere building in Sydney.The 48-year-old Frenchman got to the top in just 20 minutes, watched by dozens of people in the streets below."I'm sad he's been arrested, but hopefully he'll get out soon and we can have some champagne," said his agent Max Markson.Last year, Mr Robert was fined 750 Australian dollars (£430) for climbing the 41-storey Royal Bank of Scotland building in Sydney.Many of his previous climbs have resulted in arrests and fines.He has climbed more than 70 skyscrapers around the world, including the Empire State Building in New York and the Sears Tower in Chicago.Source: Sky News