Tonya Colson Photography Burj Dubai, Dubai, United Arab Emirates: The Burj Dubai is now the world's tallest building at 2684 ft/ 818m. It is 160 stories high and (fortunately) is fitted with the world's fastest elevators, operating at 40 mph/64 kph. This photo is taken from the Souk al Bahar at dusk, during the evening water fountain show. I should mention that the Burj Dubai cost over 40 billion USD, and the fountains were another 218 million. No wonder it's beautiful.