A group of racing camels pass under electricity lines in front of the Burj Dubai, allegedly the world's tallest building, which is still under construction. The tower is currently 1,680 feet (512 meters) and is now taller than Taipei 101 in Taiwan, which had dominated the world's skyline at 1,667 feet (508 meters) since 2004. CREDIT: Kamran Jebreili/AP