Dubai's Vertical City
Fireworks light up Burj Khalifa, the world's tallest building, during the official opening ceremony in Dubai, United Arab Emirates, Monday, Jan. 4, 2010. The developer of the newly opened, 2,717 foot tall tower said it cost about $1.5 billion to build the tapering metal-and-glass spire billed as a "vertical city" of luxury apartments and offices.
Author: CBS News Staff
Credit: AP Photo/Kamran Jebreili
