The Petronas Towers are twin skyscrapers in Kuala Lumpur, Malaysia. They were the tallest buildings in the world from 1998 to 2004 until surpassed by Taipei 101 (which was eventually surpassed by the Burj Khalifa in 2010). The towers were designed by Argentinian architect César Pelli. The towers have 88 floors and the building reaches a height of 451.9 meters (1,483 ft). The total cost was $1.6 billion USD.

This photo was created in multiple shots and was shot with a Canon EOS 400D (Rebel XTi) using Canon EF-S 10-22mm f/3.5-4.5 USM Zoom Lens to form a single vertical panorama of the Towers. 12 images were taken from top to bottom in Landscape view systematically. All 12 images were later Photomerged in Photoshop CS4. [Source]