When billionaire rulers of oil rich Persian Gulf countries want something, they get it and get it quickly. Just a couple of decades ago, someone in a little emirate called Dubai desired for it to grow. Poof. Done. Today Dubai is a massive city filled with glittery skyscrapers, bejewelled hotels, exquisite shops and one of the world's most glamorous populations. Unlike any other city on earth, modern-day Dubai was built to attract tourists. And by the thousands they arrive.