Dubai, UAE Watch the amazing fireworks show from Dubai as ruler Sheikh Mohammed unveils the world's tallest building, the Burj Khalifa (earlier Burj Dubai, changed to honor SheikhKhalifa bin Zayed al-Nahyan is the ruler of the neighbouring emirate of Abu Dhabi who helped Dubai with the 6 billion dollar debt last month).   Surprising those gathered on Monday evening for an opening ceremony lit up by fireworks, the Burj Dubai, whose height was officially given as 828 metres or 2717 feet, became... Full Story