Dubai, is the glittering city of the United Arab Emirates; so popular that the United Arab Emirates as a whole has been described as 'Dubai'. An important trading hub since its conception, Dubai has quickly emerged as a cosmopolitan, global city that is the business and cultural hub of the Middle East and the Persian Gulf region. While the primary industry for trade has been oil, Dubai is also capitalizing on tourism as an industry of high income. The world's tallest building, Burj Khalifa is in Dubai and the city is now well known for its high-rise buildings and skyscrapers. Man made islands, hotels and shopping malls add to the attraction that is Dubai. It has slowly developed into one of the most expensive cities in the world, and is by far the best city to live in the Middle East.